Reston, VA ITM/PTTI Onsite 2019

ITM/PTTI2019

January 28–31, 2019 Hyatt Regency Reston • Reston, VA

International Technical Meeting • Precise Time and Time Interval Systems and Applications

Onsite Program

www.ion.org

ITM/PTTI 2019 Meeting Schedule

Monday, January 28PTTI Tutorials ..........................9:00 a.m. - 5:00p.m.

Tuesday, January 29Exhibit Hall Open ...................8:30 a.m. - 5:00 p.m.Exhibitor Hosted Breakfast ..8:30 a.m. - 10:00 a.m.ITM/PTTI Plenary Session .....10:00 a.m. - 12:30 p.m.Lunch in Exhibit Hall .............12:30 p.m. - 1:45 p.m.Afternoon Sessions ...............1:45 p.m. - 5:30 p.m. PTTI Poster Session ...............5:30 p.m. - 6:30 p.m.

Wednesday, January 30Exhibit Hall Open ...................8:00 a.m. - 4:30 p.m.Morning Sessions ..................8:30 a.m. - 12:15 p.m.Lunch in Exhibit Hall .............12:15 p.m. - 1:45 p.m.Afternoon Sessions ...............1:45 p.m. - 5:30 p.m.

Thursday, January 31Morning Sessions ..................8:30 a.m. - 12:15 p.m.Awards Luncheon ..................12:15 p.m. - 1:45 p.m. (Lunch served until 12:30 p.m.; late arrivals will not be served.)Afternoon Sessions ...............2:00 p.m. - 5:10 p.m.

ITM/PTTI 2019 January 28 - 31, 2019 • Reston, Virginia www.ion.org

PROGRAM OVERVIEW SPECIAL EVENTS AND GENERAL CONFERENCE INFORMATION


PRE-CONFERENCE TUTORIALSPTTI Tutorial SessionsMonday, January 28

Room: Regency B9:00 a.m.–12:15 p.m.: Tutorials

12:15 p.m.–1:30 p.m. • Lunch on Your Own1:30 p.m.–5:00 p.m.: Tutorials

Must add tutorials on ITM/PTTI Registration Form. Additional Fee.

ITM/PTTI TECHNICAL SESSIONSITM TRACK A

GRAND BALLROOM EFGITM TRACK BREGENCY B

PTTI TRACKREGENCY A

Tues

day,

Janu

ary 2

9

Exhibit Hall Open 8:30 a.m.–5:00 p.m., Grand Ballroom A-D • Exhibitor Hosted Breakfast in Exhibit Hall 8:30 a.m.–10:00 a.m.

10:00 a.m.–12:30 p.m. ITM/PTTI Plenary Session Keynotes and Exhibitor Presentations, Grand Ballroom EFG

12:30 p.m.–1:45 p.m. Lunch in Exhibit Hall, Grand Ballroom A-D

1:45 p.m. - 5:30 p.m.A1: GNSS Augmentation Systems and their

Evolution

1:45 p.m. - 3:25 p.m.B1a: Advanced GNSS Signal Processing for

Challenging Environments

1:45 p.m. - 3:25 p.m.P1a: Laboratory Reports and Activities

3:55 p.m. - 5:30 p.m.B1b: GNSS Interference and Jamming Detection,

Characterization and Mitigation

3:55 p.m. - 5:30 p.m.P1b: Next Generation Clocks

5:30 p.m. - 6:30 p.m.P1c: PTTI Poster Session

Location: Grand Ballroom Foyer

Wed

nesd

ay, J

anua

ry 30

Exhibit Hall Open 8:00 a.m.–4:30 p.m., Grand Ballroom A-D

8:30 a.m. - 12:15 p.m. A2: Advanced Multi-Sensor Hybridization

Algorithms

8:30 a.m. - 12:15 p.m. B2: GNSS Spoofing Detection, Characterization and Mitigation

8:30 a.m. - 12:15 p.m. P2: GNSS Time and Frequency Transfer

12:15 p.m.–1:45 p.m. Lunch in Exhibit Hall, Grand Ballroom A-D

1:45 p.m. - 5:30 p.m.A3: Non-GNSS Navigation Methods for

Autonomous Systems

1:45 p.m. - 3:25 p.m.B3a: High Precision GNSS Positioning Techniques

1:45 p.m. - 3:25 p.m.P3a: PTTI Applications in Space

3:55 p.m. - 5:30 p.m.B3b: Innovative Navigation Algorithms

3:55 p.m. - 5:30 p.m.P3b: Space and Terrestrial Clocks

Thur

sday

, Jan

uary

31

8:30 a.m. - 12:15 p.m. A4: GNSS Remote Sensing, Atmospheric

Science and Space Applications

8:30 a.m. - 12:15 p.m. B4: Advanced Integrity for Critical Applications

8:30 a.m. - 10:05 p.m.P4a: Ground Based Time and Frequency Transfer

10:15 a.m. - 12:15 p.m.P4b: Alternative Techniques in Time Dissemination

12:15 p.m.–1:45 p.m. Awards Luncheon, Grand Ballroom D (Late arrivals will not be served after 12:30 p.m.)

2:00 p.m. - 5:10 p.m.A5: Navigation Methods for

Autonomous Systems

2:00 p.m. - 3:35 p.m.B5a: Modernized, Emerging and Future Core

GNSS Constellations

2:00 p.m. - 3:35 p.m.P5a: Time Scales and Algorithms

3:35 p.m. - 5:10 p.m.B5b: Next Generation Receiver and Antenna Technology

3:35 p.m. - 5:10 p.m.P5b: Timing Applications in Financial Markets

SPECIAL EVENTS AND GENERAL CONFERENCE INFORMATION

Access to Technical Papers and PresentationsQualified attendees may download copies of conference presentations and papers online for FREE by logging into the ION website at www.ion.org/itm or www.ion.org/ptti. Only presentations and papers provided to the ION by the presenting author will be available. Presentations will only be made available once the full technical paper is submitted. If a desired document is not available, we recommend you contact the author directly. Official conference proceedings will be distributed electronically in March to all eligible conference participants.

Mobile Conference Site Access the technical program, real-time attendee list, and other conference information from your mobile device. Point your mobile browser to m.ion.org.

Complimentary InternetFree wireless internet is available to attendees in all technical session rooms and meeting room lobbies.Network ID: @Hyatt_MeetingsPassword: ion2019

Photography PolicyYour presence at ITM/PTTI constitutes your agreement to be photographed, filmed, videotaped or otherwise recorded by conference management, or its agents, and your agreement that your image or voice may be distributed in print or electronic communications media without any compensation being paid to you. Video recording by participants is not allowed without written permission of ION during any portion of the conference. Photographs of copyrighted presentations are for personal use only and are not to be reproduced or distributed. Do not photograph any images labeled as proprietary. Flash photography, or any form of photography, that disturbs those around you, is prohibited.

Special Events at ITM/PTTI 2019The following special events are included in all full-conference registrations. Single day registrations include any special events taking place on the day the attendee is registered. Student and retired registrations include all meal functions located within the exhibit hall, however a ticket is required for the Thursday Awards Luncheon.

Exhibitor Hosted BreakfastTuesday, 8:30 a.m. - 10:00 a.m.

Exhibit Hall, Grand Ballroom A-D

Informal LuncheonTuesday, 12:30 p.m. - 1:45 p.m.

Exhibit Hall, Grand Ballroom A-D

Informal LuncheonWednesday, 12:15 p.m. - 1:45 p.m.Exhibit Hall, Grand Ballroom A-D

Annual Awards LuncheonThursday, 12:15 p.m. - 1:45 p.m.

Late arrivals will not be served after 12:30 p.m.Grand Ballroom D

Special Events for Speakers/Session ChairsAll session chairs and the presenting author of both primary and alternate presentations should attend the Speakers’ Meeting (Tuesday) or Speakers’ Breakfast (Wednesday-Thursday), taking place in the Lake Anne room on the day of their presentation(s). Speaker names will be checked at the door. Please attend the Speakers’ Meeting/Breakfast only on the morning(s) of your presentation(s). If you have not already uploaded your bio in AMP, please bring a printed copy for your session chair.


HYATT FLOOR PLAN Second Floor Meeting Space

The Application of Frequency Stability Analysis and the Use of Time Domain Statistics for Clock and Oscillator Performance AssessmentThis tutorial will provide the information to unwrap the interpretation of clock and frequency source measurements, clock statistical characterization, and frequency stability analysis to bring about a workable understanding of clock and oscillator performance assessment for the PTTI attendee. The presentations and proceedings of the PTTI generally require an attendee to have a basic working knowledge of performance metrics such as Allan deviation and single-sideband phase noise to discern the extent of contribution to the improvement of the community’s practice.

The tutorial will use NIST Special Publication 1065, Handbook of Frequency Stability Analysis by William J. Riley as a reference, so that subsequently, the user may be familiar with its application and techniques. The tutorial will also inject the work of Victor S. Reinhardt, David A. Howe, and Patrizia Tavella to supplement the material of NIST 1065. The tutorial will demonstrate analysis of measurement data from devices such as the Chip Scale Atomic Clock, GPS disciplined composite clock, and the ultra-stable oscillators on-board the New Horizons spacecraft. The use of these devices is intended to provide illustrative working examples for the identification, characterization, and assessment of both deterministic (systematic) processes and stochastic (noise) properties.

Gregory L. Weaver is a member of the Principle Professional Staff of JHU/APL and works within the RF Engineering Group of the Space Department. He is a technologist with background in the technical and business aspects of the frequency control industry as a senior design engineer, technical manager and marketing strategist.

Atomic Clock TechnologyAtomic frequency standards provide the ultimate source of accuracy and stability for all modern communications, navigation, and time-keeping systems. Commercially-available “Industrial” atomic clocks, including cesium beam frequency standards, rubidium oscillators, and hydrogen masers, are based on technology originally developed in the 1950’s. Since that time, technology evolution and field experience have led to a level of performance and reliability that atomic clocks are now deployed throughout critical infrastructure applications. With the advent of GPS and, consequently, global availability of precision timing, new applications for precision timing have emerged, with ever increasing demands for improved precision, robustness, and portability. In parallel, we are, at present, experiencing a renaissance of atomic timekeeping, as modern techniques of atomic and laser physics have enabled new techniques for confining, interrogating, and exploiting precision atomic timing signals. This tutorial will provide an introduction to existing and emerging atomic clock technologies. The tutorial will focus on mature technologies: rubidium oscillators, cesium beam frequency standards, and hydrogen masers, as well as commercially-available chip-scale atomic clocks. Time permitting, the tutorial will address emerging atomic clock technologies: laser-cooled atoms and atomic fountains, optical-carrier-frequency clocks and optical frequency synthesis, and next-generation high-performance chip-scale clocks.


PTTI PRE-CONFERENCE TUTORIALS MONDAY, JANUARY 28

Pre-conference tutorials have been organized to provide in-depth learning prior to the start of the technical program. All courses will be taught in a classroom setting. Electronic notes will be made available for download by registered attendees from the meeting website; registered attendees are encouraged to download notes in advance of courses. Power will NOT be available to course attendees for individual laptop computers; please come prepared with adequate battery power if required. ION reserves the right to cancel a portion of the tutorial program based on availability of the instructor.

Time Course Presenter

9:00 a.m. - 10:30 a.m. The Application of Frequency Stability Analysis and the Use of Time Domain Statistics for Clock and Oscillator Performance Assessment

Gregory L. Weaver

10:45 a.m. - 12:15 p.m. Atomic Clock Technology Dr. R. Lutwak, Dr. D.R. Scherer12:15 p.m.–1:30 p.m. Lunch on Your Own

1:30 p.m. - 2:45 p.m. Timescales and Timekeeping Dr. Patrizia Tavella

3:00 p.m. - 4:00 p.m. Global Navigation Satellite System (GNSS) Overview with a Focus on Precise Time Disseminations and Standards

Ed Powers

4:00 p.m. - 5:00 p.m. Distributing Time and Frequency Data: Requirements and Methods Dr. Judah Levine


PTTI PRE-CONFERENCE TUTORIALS ROOM: REGENCY B

Dr. Robert Lutwak serves as Senior Technologist for Position, Navigation, and Timing (ST PNT) at the Air Force Research Laboratory in Dayton, OH (AFRL). He received his B.S. in Physics from Miami University in 1988 and his Ph.D. in Atomic and Optical Physics from M.I.T. in 1997.

Dr. David R. Scherer is a Lead Scientist at The MITRE Corporation in the Communications, SIGINT, and PNT Department. Previously, he was a Senior Physicist at Microsemi, where he developed several next-generation atomic clock architectures. He holds a Ph.D. in Optical Sciences from the University of Arizona.

Timescales and TimekeepingRealizing a time scale means having at one’s disposal atomic clocks, a measurement system, and the capacity to process data to establish an ensemble time possibly steered on the international reference time UTC. The definition of a reference time scale and the necessary tools, mostly related to the necessary algorithms, will be reviewed and the current realization of UTC at the BIPM will be presented. Time scales and timekeeping are as well of interest for navigation systems: clocks are to be estimated, predicted, and validated as typically carried out in timekeeping laboratories. The tutorial will cover these aspects, also showing the main challenges in this area.

Dr. Patrizia Tavella holds a degree in Physics and a Ph.D. in Metrology. She is Director of the Time Department at the BIPM and was previously a senior scientist with the Italian Metrology Institute, INRIM, Torino, Italy. Her main interests are mathematical and statistical models mostly applied to atomic time scale algorithms.

Global Navigation Satellite System (GNSS) Overview with a Focus on Precise Time Disseminations and StandardsGPS has provided an operational Position Navigation and Timing (PNT) service for more 25 years, and the vast majority of PNT applications use GPS as its fundamental source for PNT data. GPS operates using very precise synchronized ranging signals, where in general every nanosecond of synchronization error can lead to one foot of navigation error. Because of this exquisite timing synchronization, GPS provides a precise timing service used to support many important user communities ranging from power grid, telecommunication networks, science and the banking industry. Today GPS is no longer the only GNSS system, there are now several other GNSS systems in either operations and/or system development. This tutorial will provide an overview of how GPS operates, discuss the other GNSS systems and the reference standard that underlay each system.

Ed Powers received his BS and MS degrees in Electronic Engineering and Instrumental Science from the University of Arkansas. Previously, he has worked at NRL on GPS clock development and at the USNO as the GPS Operations Division Chief. Ed joined the Aerospace Corp in October 2018 as Senior Project Engineer, GNSS Engineering & Technology.

Distributing Time and Frequency Data: Requirements and MethodsThis course will describe the methods that are used to distribute time and frequency information, with special emphasis on methods that are independent of global navigation satellite systems. The course will illustrate these methods with the requirements of commercial and financial institutions and distributors of electrical power. In addition to the purely technical requirements, additional requirements that result from the need to demonstrate traceability to national standards will also be discussed. The level of accuracy that is required to support these applications is relatively modest from the perspective of the internal time scales of most National Metrology Institutes and timing laboratories, but satisfying the requirements becomes much more challenging when the need for extreme reliability and the limitations of many of the common distribution channels are included. None of the alternative solutions that have been proposed is completely adequate now and all of them will have increasing difficulty satisfying the increasing accuracy requirements in the future.

Dr. Judah Levine is a Fellow of NIST and leader of the Network Synchronization Project in the Time and Frequency Division in Boulder, Colorado. He received his Ph.D. in Physics from New York University in 1966. Dr. Levine is a member of the IEEE and a Fellow of the American Physical Society.


PTTI PRE-CONFERENCE TUTORIALS ROOM: REGENCY B

ITM/PTTI 2019 THANKS OUR CONFERENCE PARTNERS


TECHNICAL SESSIONS TUESDAY AFTERNOON, JANUARY 29


PTTI Tutorials ChairDr. Jennifer TaylorUS Naval Observatory

January 29, 201910:00 a.m. – 12:30 p.m.Grand Ballroom E/F/G

MEETING ORGANIZERS

PLENARY SESSION

ITM General ChairDr. Jiyun Lee KAIST, South Korea

ITM Program ChairDr. Olivier Julien u-blox, Switzerland

PTTI General ChairDr. James HanssenUS Naval Observatory

PTTI Program ChairDr. Michael ColemanNaval Research Laboratory

GNSS Resilience: From Single Point of Failure to Many Points of SuccessDana Goward Resilient Navigation and Timing Foundation

Officials at the US Department of Homeland Security have called the nation’s over-reliance on GNSS "…a single point of failure for critical infrastructure." This presentation will examine studies and real world instances of GNSS disruption that demonstrate this challenge. A policy and technology roadmap to Protect signals, Toughen receivers, and Augment signals will be presented as a frame work for ensuring national PNT resilience.

The Development of Coordinated Universal TimeDr. Dennis D. McCarthy US Naval Observatory, Contractor/ International Astronomical Union In the nineteenth century the words "universal time" referred only to the concept of a time scale that might be the same all over the world, as opposed to the numerous "local time" scales. In the eighteenth century Greenwich Mean Time was one of a small number of time scales to be used in conjunction with national almanacs for navigational purposes, but in 1884, following a number of international meetings, the International Meridian Conference proposed the Greenwich meridian as the origin of longitudes and further proposed the adoption of a "universal day" as the basis for timekeeping. This led to the use of the names Greenwich Mean Time, Greenwich Civil Time and Greenwich Mean Astronomical Time. In 1928 the International Astronomical Union first recommended using the name "Universal Time" to refer to the mean solar time on the Greenwich meridian. By 1956 astronomers recognized three varieties of Universal Time based on observations of stars, and by 1960 the term "Coordinated Universal Time" was being used informally to refer to the practice of timekeeping laboratories to "coordinate" their adjustments to clocks based on astronomical observations. The name was formalized by the Consultative Committee on Radio Communications (CCIR) in 1963, and in 1967 the CCIR and the IAU officially adopted the names Coordinated Universal Time and Temps Universel Coordonné (UTC). During all that time the science of timekeeping improved by orders of magnitude proceeding from a time scale based solely on stellar observations to one based on the frequency of an atomic transition in the Caesium atom. The development of UTC continues today with existing speculation regarding its definition, practical realization and applications.

Dr. Michael Coleman PTTI Program ChairNaval Research Laboratory

Dr. Olivier JulienITM Program Chairu-blox, Switzerland

Dr. John RaquetION President Air Force Institute of Technology

ITM/PTTI PLENARY KEYNOTES

WELCOME AND INTRODUCTIONS

WELCOME AND INTRODUCTIONS

10:00 a.m. - 10:10 a.m.

KEYNOTEPRESENTATIONS

10:10 a.m. - 11:45 a.m.

EXHIBITORPRESENTATIONS

11:45 a.m. - 12:30 p.m.

LUNCH IN THE EXHIBIT HALL12:30 p.m. - 1:45 p.m.

Session B1b: GNSS Interference and Jamming Detection, Characterization and Mitigation Room: Regency B3:55 p.m. – 5:30 p.m.

4:00 Exploiting Wideband Characteristics of GNSS Interference Geo-localization: Theory and Field Test: Joon Wayn Cheong, Andrew G. Dempster, University of New South Wales, Australia; Ryan J. Thompson, Joe Fleming, and Graeme Hooper, GPSat Systems Pty Ltd., Australia

4:23 GNSS Interference in L-Band SAR Missions – Assessment and Mitigation: Oliver Montenbruck, Markus Markgraf, DLR/GSOC, Germany; Michel Tossaint, ESA/ESTEC, The Netherlands

4:46 A Comparison of Optimized Mitigation Techniques for Swept-frequency Jammers: Wenjian Qin, Politecnico di Torino, Italy; Micaela Troglia Gamba, Emanuela Falletti, Istituto Superiore Mario Boella, Italy; Fabio Dovis, Politecnico di Torino, Italy

5:08 IMM Methods for Carrier Phase Tracking and Navigation Data Bits Estimation Through Interference: Wengxiang Zhao and Boris Pervan, Illinois Institute of Technology

Alternates

1. Interference Detection based on Fractional Order Time-Frequency Analysis for GNSS Receivers: Kewen Sun, Hefei University of Technology, China

TECHNICAL SESSIONS TUESDAY AFTERNOON, JANUARY 29


Session A1: GNSS Augmentation Systems and their Evolution Room: Grand Ballroom EFG1:45 p.m. – 5:30 p.m.

1:50 Development and Evaluation of Airborne Multipath Error Bounds for L1-L5: Juan Blanch, Todd Walter, R. Eric Phelts, Stanford University

2:12 Towards Airborne Multipath Models for dual Constellation and Dual-frequency GNSS: M. Felux, M.-S. Circiu, S. Caizzone, C. Enneking, F. Fohlmeister, M. Rippl, German Aerospace Center (DLR), Germany

2:35 Galileo Model of Group Delay Accuracy for Advanced RAIM users: Ilaria Martini, European Commission, Belgium; Matteo Sgammini, JRC, European Commission, Belgium; Juan Pablo Boyero, European Commission, Belgium

2:58 Sample Temporal Correlation Effect on Integrity Risk: Eugene Bang, Carl Milner and Christophe Macabiau, Ecole Nationale de l'Aviation Civile, France; Philippe Estival, DSNA, France

3:25 - 3:55, Break. Refreshments in Exhibit Hall

4:00 Integrity Risk Evaluation of Impact of Ionospheric Anomalies on GAST D GBAS: Moonseok Yoon and Jiyun Lee, Korea Advanced Institute of Science and Technology, South Korea; Sam Pullen, Stanford University

4:23 Safety Analysis of Ranging Biases on the WAAS GEOs: Todd Walter, Juan Blanch, Stanford University and Eric Altshuler, Sequoia Research Corporation

4:46 Comparison of two Ionospheric Delay Correction Methods in SBAS of China: Shan Wang, China University of Mining & Technology, China; Xin Meng, Zun Niu, Peking University, China; Yu Yin, Beihang University, China

5:08 An Evaluation of WAAS to Meet Maritime Navigation Requirements in Canadian Waters: Gregory Johnson, Christopher Grayson, and Gaurav Dhungana, Alion Science and Technology; Jean Delisle, Valcom Consulting Group

Alternates

1. Field Data Collection to Validate the Usage of WAAS for Maritime Navigation in Canadian Waters: Gregory Johnson, Christopher Grayson, and Gaurav Dhungana, Alion Science and Technology; Jean Delisle, Valcom Consulting Group

2. Performance Evaluation of L5 SBAS Message from Quasi – Zenith Satellite System: Nian-Jhen Wu and Shau-Shiun Jan, National Cheng Kung University, Taiwan; Takeyasu Sakai, ENRI, Japan

Dr. Denis Bouvet, Thales Avionics, France

Dr. Sam Pullen, Stanford University

Session B1a: Advanced GNSS Signal Processing for Challenging Environments Room: Regency B1:45 p.m. – 3:25 p.m.

1:50 A GPS and GLONASS L1 Vector Tracking Software-Defined Receiver: Tanner Watts, Scott Martin, and David Bevly, Auburn University

2:12 Characterization of Line-of-sight and Non-line-of-sight Pseudo-range Multipath Errors from GNSS Mass-market Receiver in Urban Environment: Eustachio Roberto Matera, Axel Garcia-Pena, Olivier Julien, Carl Milner, Bertrand Ekambi, Abbia GNSS Technologies, France

2:35 A High-Fidelity Wideband Signal Software Simulator for GNSS Antenna Arrays Accelerated by GPU: Guifeng Fan, XiaoWei Cui, Tsinghua University, China; Xueyong Xu, North Information Control Research Academy Group Co., Ltd., China

2:58 GNSS Signal Acquisition based on Double-block Partial Coherent Combining for Overcoming bit Transitions: Jing Wang, Wei Wang, Aimeng Liu, Zhenyu Wei, Harbin Engineering University, China


Alternate

1. A Theoretical Analysis of the Array Induced bias Considering Carrier Phase Continuity: Zhao Lin, Liu Aimeng, Ding Jicheng, Wang Jing, College of Automation, Harbin Engineering University, China

Dr. Sai Kalyanaraman, Rockwell Collins

Elias Gkougkas, Universität der Bundeswehr München, Germany

Dr. Okuary Osechas, German Aerospace Center (DLR) Germany

Dr. Laura Ruotsalainen, National Land Survey of Finland, Finland

ITMOne Registration Fee, Two Technical Events and a Commercial Exhibitwww.ion.org

®

INSTITUTE OF NAVIGATION

PTTIINTERNATIONAL TECHNICAL MEETING

PRECISE TIME AND TIME INTERVAL SYSTEMS AND APPLICATIONS MEETING

January 21–24, 2020Hyatt Regency Mission Bay

San Diego, CA Save the Date!

PTTI TECHNICAL SESSIONS TUESDAY AFTERNOON, JANUARY 29


Session P1a: Laboratory Reports and Activities Room: Regency A1:45 p.m. – 3:25 p.m.

1:50 The BIPM Time Department: Report on Activity: Patrizia Tavella, Gérard Petti, Gianna Panfilo, Frédéric Meyenadier, Aurélie Harmegnies, Johanna Goncalves, Laurent Tisserand, Bureau International des Poids et Mesures, France

2:12 Status of the U.S. Naval Research Laboratory Precision Clock Evaluation Facility: Ken Senior, U.S. Naval Research Laboratory

2:35 NPL’s Time and Frequency Laboratory Activities: Elizabeth Laier English, National Physical Laboratory, UK

2:58 NRC Frequency and Time Group Laboratory Report: Marina Gertsvolf, National Research Council Canada, Canada


Alternates1. Time Keeping and Time Transfer Activities at NIM:

Aimin Zhang, Kun Liang, Yuan Gao, Zhiqiang Yang, Yuzhuo Wang, Qinghua Xu, National Institute of Metrology, China

2. Improvements of TA(SU) and UTC(SU) during Last Year: I. Blinov, A. Boyko, N. Kosheliaevskii and O. Sokolova, VNIIFTRI Department of Metrology for Time and Space Mendeleevo, Russia

Session P1c: PTTI Poster Session Room: Grand Ballroom FoyerTuesday, January 29, 20195:30 p.m. – 6:30 p.m.

1. Development of a New Modem for TWCP: Miho Fujieda, Tadahiro Gotoh, Ryo Tabuchi, and Ryuichi Ichikawa, NICT

2. The H2020 Project CLONETS: Clock Services over Optical-fibre Networks in Europe – Approaching the Project Finish: J. Vojtech, J. Radil, V. Smotlacha, Radek Velc, CESNET z.s.p.o., Czech Republic; P. Krehlik, L. Sliwczynski, AGH University of Science and Technology, Poland; M. Campanella, Consortium GARR, Italy; D. Calonico, C. Clivati, F. Levi, Istituto Nazionale di Ricerca Metrologica, Italy; O. Cíp, S. Rerucha, Institute of Scientific Instruments of the ASCR, v.v.i. (ISI), Czech Republic; R. Holzwarth, M. Lessing, S. Saint-Jalm, Menlo Systems, Germany; F. Camargo, B. Desruelle, J. Lautier-Gaud, Muquans, France; E. Laier English, J. Kronjäger, P. Whibberley, National Physical Laboratory, UK; E. Bookjans, P-E. Pottie, P. Tuckey, LNE-SYRTE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universite, France; T. Müller, J. Štefl, M. Šteflová, OPTOKON, a.s., Czech Republic; P. Nogas, R. Urbaniak, Piktime Systems sp. z o.o., Poland; A. Binczewski, W. Bogacki, K. Turza, Poznan Supercomputing and Networking Center, Poland; G. Grosche, H. Schnatz, Physikalisch-Technische Bundesanstalt, Germany; E. Camisard, N. Quintin, GIP-Renater, France; J. Diaz, E. Ros, T. García, Seven Solutions S.L., Spain; A. Galardini, Conzorzio ToP-IX, Italy; A. Seeds, Z. Yang, University College London, UK; A. Amy-Klein, LPL, Université Paris 13, CNRS, France

3. Asymmetry Effects of Satellite Motion on Two-way Time and Frequency Transfer: Wen-Hung Tseng, Shinn-Yan Lin, Chunghwa Telecom Co., Ltd., Taiwan

4. Research Progress of Time Scale and UTC(NTSC) Steering: Shuhong Zhao, Shaowu Dong, Lili Qu, Shanshan Bai, Dongshan Yin, National Time Service Center, China

5. Bilateral Phase Noise Comparison between Tubitak UME and SASO NMCC: Adem Gedik, Ramiz Hamid, Khalid S. AlDawood, Fahad A. AlMuhlaki, Waleed M. Al Harbi, TUBITAK UME, Turkey

6. The Long-term Stability of the U.S. Naval Observatory’s Hydrogen Masers: Demetrios Matsakis, U.S. Naval Observatory

7. To the Issue of Frequency Band and Frequency Measurement Accuracy : I. Blinov, Yu Domnin, and N. Kosheliaevskii, VNIIFTRI Department of Metrology for Time and Space Mendeleevo, Russia

8. Time and Frequency Activities at the JHU Applied Physics Laboratory: Mihran Miranian, Jeffrey F. Garstecki, Olukayode K. Okusaga, Richard A. Dragonette, Gregory L. Weaver, Johns Hopkins University/APL

Dr. Demetrios Matsakis, U.S. Naval Observatory

Dr. James Hanssen, U.S. Naval Observatory


Victor Zhang, National Institute of Standards and Technology

Stephen Mitchell, U.S. Naval Observatory

Dr. Scott Crane, U.S. Naval Research Laboratory

Dr. Daphna Enzer, Jet Propulsion Laboratory

Session P1b: Next Generation Clocks Room: Regency A3:55 p.m. – 5:30 p.m.

4:00 An Improved and Robust Cs Fountain Clock Design – Novel Evaluation Tools and Operational Configuration: K. Szymaniec, R.J. Hendricks, K. Burrows, National Physical Laboratory, UK

4:23 Evaluation of the Microwave Leakage Induced Frequency Shift of the NRC-FCs2 Atomic Fountain Clock: Bin Jian, Scott Beattie, A. John Alcock, Marina Gertsvolf, National Research Council, Canada

4:46 Frequency Comparisons via GPS Carrier-phase: Jump Processing, Temperature Compensation and Zero/Short-baseline Noise-floors: Daphna G. Enzer, David W. Murphy, and William A. Diener, Jet Propulsion Laboratory, California Institute of Technology

5:08 Suppression of Dick Effect by Interleaving Lock in a Ramsey-CPT Atomic Clock : Pengfei Cheng, Jianwei Zhang, Tsinghua University, China; Daonong Zhang, North China Power Engineering CO. LTD, China; Lijun Wang, Tsinghua University, China

Session P2: GNSS Time and Frequency Transfer Room: Regency A8:30 a.m. – 12:15 p.m.

8:35 Biases Introduced by Multi-path Effects on Time Transfer with GNSS Receivers: Daniele Rovera, Michel Abgrall, Franziska Riedel, Pierre Uhrich, LNE-SYRTE, Observatoire de Paris, Universite PSL, CNRS, Sorbonne Universite, France; Pascale Defraigne, Bruno Bertrand, Royal Observatory of Belgium, Belgium; Jean-Marie Torre, University Nice Sophia Antipolis, CNRS, IRD, Observatoire de la Côte d’Azur, France

8:57 Inter-satellite biases in GNSS Pseudoranges and its Impact on Time Transfer: P. Defraigne, K. Verhasselt, N. Bergeot, J.-M. Chevalier, Royal Observatory of Belgium, Belgium

9:20 Thinking on GNSS System Time Scale and Interoperability: N. Kosheliaevskii, VNIIFTRI Department of Metrology for Time and Space Mendeleevo, Russia

9:43 GNSS-to-GNSS Time Offsets: A Realistic Case Study: G. Signorile, I. Sesia, T.T. Thai, Istituto Nazionale di Ricerca Metrologica, Italy; P. Defraigne, Royal Observatory of Belgium, Belgium; P. Tavella, Istituto Nazionale di Ricerca Metrologica & Bureau International des Poids et Mesures, Italy

10:05-10:35, Break. Refreshments in Exhibit Hall

10:40 Amelioration of the usage and Monitoring of GNSS Signals at PTB: Andreas Bauch, Thomas Polewka, Dirk Piester, and Egle Staliuniene, Physikalisch-Technische Bundesanstalt, Germany

11:03 Time Transfer via BDS and Galileo Compared to Time Transfer via GPS: K. Liang, A. Zhang, Z. Yang, Division of Time and Frequency Metrology, National Institute of Metrology, China; Q. Chen, K. Han, Division of Time and Frequency Metrology, National Institute of Metrology & Beijing JiaoTong University, China; C. Ding, Division of Time and Frequency Metrology, National Institute of Metrology, China & Qingdao Institute of Measurement Technology, China

11:26 Time Scales Comparisons Using Multi-Frequency Combinations of BeiDou Signals: Petr Pánek, Alexander Kuna, Institute of Photonics and Electronics, Academy of Sciences, Czech Republic

11:48 Precise Time in your Pocket: Timing Performance of Android Phones: Ciro Gioia, Sophie Damy, Daniele Borio, European Commission Joint Research Centre Directorate E - Space, Security and Migration Unit for Technology Innovation in Security, Italy

Session B2: GNSS Spoofing Detection, Characterization and Mitigation Room: Regency B8:30 a.m. – 12:15 p.m.

8:35 Investigation of the Vulnerability of Mobile Networks Against Spoofing Attacks on their GNSS Timing-receiver: Ronny Blum, Dominik Dötterböck, Thomas Pany, Universität der Bundeswehr Munich, Germany

8:57 The Effects of the Distance-decreasing Attacks on Cryptography-based GNSS Signals: Kewei Zhang and Panos Papadimitratos, KTH Royal Institute of Technology, Sweden

9:20 A Novel Interference Detection based on Wigner-Hough Transform for GNSS Receivers: Kewen Sun, Hefei University of Technology, China

9:43 Tests of Crowdsourced Smartphones Measurements to Detect GNSS Spoofing and Other Disruptions: Sherman Lo, Stanford University; Dennis Akos, Stanford University and University of Colorado Boulder; Brandon Cotts, Damien Miralles, University of Colorado Boulder


10:40 Increasing International Civil Aviation Resilience: A Proposal for Nomenclature, Categorization and Treatment of New Interference Threats: Ignacio Fernández-Hernández, European Commission, Belgium; Todd Walter, Stanford University; Ken Alexander, Barbara Clark, Federal Aviation Administration; Eric Châtre, European Commission, Belgium; Chris Hegarty, The MITRE Corporation

11:03 On Cyber-security of Augmentation Networks: Alessandro Neri, Sara Baldoni, ROMA TRE University, Italy; Roberto Capua, SOGEI, Italy

11:26 A Novel Authentication Signal Component for Codeless Correlation: E. Gkougkas, M. Arizabaleta, T. Pany and B. Eissfeller, Universität der Bundeswehr München, Germany

11:48 A Feasibility Study and Risk Assessment of Security Code Estimation and Replay Attacks: M. Arizabaleta, E. Gkougkas, T. Pany and B. Eissfeller, Universität der Bundeswehr München, Germany

Session A2: Advanced Multi-Sensor Hybridization Algorithms Room: Grand Ballroom EFG8:30 a.m. – 12:15 p.m.

8:35 A Novel Indoor Localization Method Based On Image Retrieval and Dead Reckoning: Huiping Zhu, Jiuchao Qian, Rendong Ying, Xiaoguang Zhu, Ruihang Miao, Fei Wen, Shanghai Jiao Tong University, China; Jun Shen, Beijing Unistrong Science and Technology Co. Ltd., China; Peilin Liu, Shanghai Jiao Tong University, China

8:57 FQS: Feature Quality Supervision for Visual-Inertial Navigation: Hongyan Liu, Huimin Ma, Jinghuan Wen, Jingxuan Su, Zheng Yao, Lin Zhang, Tsinghua University, China

9:20 Fusion of Dual Optical Image Solutions for Augmentation of GNSS-based Aircraft Landing Systems: M. Angermann, S. Wolkow, A. Dekiert, P. Hecker, Institute of Flight Guidance, Technische Universität Braunschweig, Germany

9:43 Diagnostics of GNSS-based Virtual Balise in Railway Using Embedded Odometry and Track Geometry: Heekwon No, Jeremy Vezinet, and Carl Milner, Ecole Nationale de l’Aviation Civile, France


10:40 Performance Evaluation of Navigation Using LEO Satellite Signals with Periodically Transmitted Satellite Positions: Christian Ardito, Joshua Morales, Joe Khalife, and Zak (Zaher) M. Kassas, University of California, Irvine

11:03 Ultrasonic Wheel Based Aiding for Land Vehicle Navigation in GNSS Denied Environment: Mohamed Moussa, Adel Moussa, and Naser El-Sheimy, University of Calgary, Canada

11:26 UWB-based Infrastructure-free Cooperative Navigation with NLoS Ranging bias Compensation for Indoor Pedestrian Geolocation: Jianan Zhu and Solmaz S. Kia, University of California Irvine

11:48 A Grid SINS/USBL Tightly-Coupled Integration Algorithm for Unmanned Underwater Vehicles in Polar Regions: Zhao Lin, Kang Yingyao, and Cheng Jianhua, Harbin Engineering University, China

Alternate

1. GNSS/INS Integration with Partial-ZUPT for Land Vehicle Navigation: Jingxuan Su, Zheng Yao, Mingquan Lu, Tsinghua University, China

TECHNICAL SESSIONS WEDNESDAY MORNING, JANUARY 30


Dr. Dennis Akos, University of Colorado at Boulder

Dr. Beatrice Motella, Institute Superiore Mario Boella, Italy

Dr. Rui Sun, Nanjing University of Aeronautics & Astronautics, China

Dr. Andrey Soloviev, QuNav


Dr. Pascale Defraigne, Observatoire Royal de Belgique, Belgium

Dr. Giancarlo Cerretto, Istituto Nazionale di Ricerca Metrologica, Italy

12:15 p.m. - 1:45 p.m. • Lunch in Exhibit Hall • Grand Ballroom A-D

TECHNICAL SESSIONS WEDNESDAY MORNING, JANUARY 30


TECHNICAL SESSIONS WEDNESDAY AFTERNOON, JANUARY 30

12:15 p.m. - 1:45 p.m. • Lunch in Exhibit Hall • Grand Ballroom A-D

Session P3a: PTTI Applications in Space Room: Regency A1:45 p.m. – 3:25 p.m.

1:50 High Stability Reference Clock for Small Satellites: Damon Van Buren, University of Colorado Boulder, Space Signal Sciences LLC; Scott Palo, Penina Axelrad, University of Colorado Boulder

2:12 Ensemble Synchronization for a Constellation of Geosynchronous Communication Satellites: James Camparo and Travis Driskell, The Aerospace Corporation

2:35 GNSS Stability Monitoring using the Three-Cornered Hat Method: Ciro Gioia, Daniele Borio and Sophie Damy, European Commission Joint Research Centre Directorate Space, Security and Migration Unit Technology Innovation in Security, Italy

2:58 PulChron: A Pulsar Time Scale Demonstration for Galileo: Ricardo Píriz, Esteban Garbin, Pedro Roldán, GMV, Spain; Michael Keith, Benjamin Shaw, University of Manchester, UK; Setnam Shemar, Kathryn Burrows, John Davis, NPL, UK; Stefano Binda, ESA, The Netherlands


Session P3b: Space and Terrestrial Clocks Room: Regency A3:55 p.m. – 5:30 p.m.

4:00 The Frequency Instability of a Limited Production Run of the cRb-Clock: F. G. Ascarrunz, Maria. C. Delgado Aramburo, L. I. Ascarrunz, and Lorenzo Hernandez, SpectraDynamics, Inc.; S. R. Jefferts and Alessandro Banducci, National Institute of Standards and Technology

4:23 Design Innovations for Miniaturized GPS Quality Clocks: Chad Fertig, Karl Nelson, Chad Hoyt, Justin Foley, Neal Solmeyer, Matthew Puckett, Jeff Kriz, Joshua Dorr, Martin Lin, Rob Compton, Jim Nohava, Matt Spurr, Terry Fabian, Terry Stark, Honeywell Aerospace

4:46 The Optical Rubidium Atomic Frequency Standard: Toward a Rugged, Space-worthy Optical Atomic Clock: Benjamin Stuhl, Michael Wojcik, Michael Holt, Jason Wooden, Jordan Armstrong, Space Dynamics Laboratory; Kyle W. Martin, Matthew S. Bigelow, ATA; Nathan D. Lemke, Bethel University

5:08 The Evolution of the Space CSAC: From Concept to Qualified Product: Stewart Hampton, Matt Stanczyk, Peter Cash and Mike Silveira, Microsemi Frequency and Time Corporation

Session B3a: High Precision GNSS Positioning Techniques Room: Regency B1:45 p.m. – 3:25 p.m.

1:50 Integrity for High Accuracy GNSS Correction Services: Landon Urquhart and Rodrigo Leandro Sapcorda Services Inc.

2:12 A New Cycle-Slip Detection Algorithm for Network RTK Using Optimal Dual-Frequency Carrier-Phase Combinations: Donguk Kim, Seoul National University, Republic of Korea; Junesol Song, ENAC, France; Sunkyoung Yu, Changdon Kee, Seoul National University, Republic of Korea

2:35 Analysis of GPS-DCM Clock Corrections in Support of 1Hz PPP-AR Applications: Omid Kamali and François Lahaye, Natural Resources Canada, Canada

2:58 Emulating the Smartphone GNSS Receiver to Understand and Analyze the Anomalies in RTK Positioning using GNSS Raw Measurements: Himanshu Sharma, Andreas Schütz, and Thomas Pany, Universität der Bundeswehr münchen (ISTA), Germany


Alternates1. Deployment and Evaluation of a Real-time

Kinematic System Using Tinc-VPN Software: Xing Liu, Tarig Ballal, Martins Bruvelis, and Tareq Y. Al-Naffouri, King Abdullah University of Science and Technology, Saudi Arabia

2. Utilizing a Priori Attitude Baseline Information to Improve the Reliability of Integer Ambiguity Resolution of Low-Cost Receivers for Relative Positioning Between Autonomous Vehicles: Troupe Tabb, Scott Martin, David Bevly, Auburn University

Session B3b: Innovative Navigation Algorithms Room: Regency B3:55 p.m. – 5:30 p.m.4:00 Performance of Dual-Channel Codeless and

Semicodeless Processing: John Betz and Alex Cerruti, The MITRE Corporation

4:23 Robust Navigation under Incomplete Localization Using Reinforcement Learning: Xiao Chu, Rendong Ying, Wuyang Xue, Ruihang Miao, Jiuchao Qian, Fei Wen, Jun Shen and Peilin Liu, Shanghai Jiao Tong University, Beijing Unistrong Science and Technology Co. Ltd, China

4:46 On-the-fly Ambiguity Resolution without Requirements of Priori Position Information for Passive Pseudolite Receiver: Shijie Yun, Zheng Yao, Tengfei Wang, Jingxuan Su, Mingquan Lu, Tsinghua University, China

5:08 Collaborative Monitoring for Alternative PNT Services: Okuary Osechas and Michael Meurer, German Aerospace Center (DLR), Germany

Alternate

1. Kalman Filtering for Compressed Sensing of GNSS Signals: Juan Carlos Bermúdez Ordoñez and Fernando Gómez Comendador, Technical University of Madrid, Spain

Session A3: Non-GNSS Navigation Methods for Autonomous Systems Room: Grand Ballroom EFG1:45 p.m. – 5:30 p.m.

1:50 A Machine Learning Approach for Wi-Fi RTT Ranging: Nir Dvorecki, Ofer Bar-Shalom, Leor Banin, and Yuval Amizur, Intel Corporation, Israel

2:12 Single Transmitter based Precise Positioning System using Multiple Antenna: Experimental Tests: O-J. Kim, B. Shin, C. Kee, Seoul National University, Republic of Korea; C. Kim, Kakao Mobility Corp., Republic of Korea; T. Lee, Korea Institute of Science and Technology, Republic of Korea; H. So, G, Kim, Agency for Defense Development, Republic of Korea

2:35 An Experimental Receiver for Positioning by Triangulating on Non-Cooperating Cell Towers: Gennady Y. Poberezhskiy, David E. Lewis, Paul H. Grobert, Paul G. Quinn, William K. Wallace; Raytheon Space and Airborne Systems

2:58 Aerial Simultaneous Localization and Mapping by the Earth's Magnetic Anomaly Field: Taylor Lee and Aaron Canciani, Air Force Institute of Technology


4:00 Comparison of Transfer Alignment Methods for Fixed-Wing Air Vehicles with Actual F-16 Flight Data: Mehmet Erçin Özgeneci, Evrim Özten, Roketsan, Turkey

4:23 Magnetic Gradient Tensor Framework for Attitude-Free Position Estimation: Timothy Getscher and Paul Frontera, US Naval Academy

4:46 DME Multipath Simulations as a Critical enabler to Support DME/DME RNP Reversion: Victor Gordo, Gema Paz, Javier San Juan, Ineco, Spain

5:08 Rethinking Star Selection in Celestial Navigation: Peter F Swaszek, University of Rhode Island; Richard J. Hartnett and Kelly C. Seals, U.S. Coast Guard Academy

Alternates

1. Surface Correlation based Localization Technology using only LTE Signals in Urban Canyon: Jung Ho Lee, Beomju Shin, Korea Institute of Science and Technology, South Korea; Seo Ho Lee, Lee Technology Korea Co., Ltd., South Korea; Jinwoo Park, Korea University, South Korea; Taikjin Lee, Korea Institute of Science and Technology, South Korea

2. Study of HD Radio™ Digital FM Broadcast Signals for Possible Navigation Use: Brian D. Slosman, Jeffrey H. Reed, Mark L. Psiaki, Virginia Polytech, Institute and State University

Dr. Sébastien Carcanague, Swift Navigation

Dr. Sandra Verhagen, Delft University of Technology, The Netherlands

Dr. Maarten Uijt de Haag, Ohio University

Dr. Liang Chen, Wuhan University, China

Dr. James Camparo, The Aerospace Corporation

James Hagerman, Lockheed Martin Space

Dr. Nicola Linty, Politecnico di Torino, Italy

Dr. Terry Moore, University of Nottingham, UK

Peter Cash, Microsemi

Dr. Thomas McClelland, Frequency Electronics, Inc.

Session P4a: Ground Based Time and Frequency Transfer Room: Regency A8:30 a.m. – 10:05 a.m.

8:35 Frequency Comb Optical Two-Way Time-Frequency Transfer: Laura C. Sinclair, Jean-Daniel Deschênes, Hugo Bergeron, William C. Swann, Isaac Khader, Esther Baumann, Martha Bodine, Kevin C. Cossel, and Nathan R. Newbury, NIST

8:57 European Union Funded Projects for Time and Frequency Transfer in Optical Fiber: Vladimir Smotlacha, CESNET, Czech Republic

9:20 Nine Years of Operation of Time Transfer by Laser Link (T2L2): Daniele Rovera, LNE-SYRTE, Observatoire de Paris, Universite PSL, CNRS, Sorbonne Universite, France; Etienne Samain, Jean-Marie Torre, Clement Courde, Alexandre Belli, Pierre Exertier, University Nice Sophia Antipolis, CNRS, IRD, Observatoire de la Côte d’Azur, France; Pierre Uhrich, Michel Abgrall, LNE-SYRTE, Observatoire de Paris, Universite PSL, CNRS, Sorbonne Universite, France, Philippe Guillemot, CNES, France

9:43 NRC TimeLinkTM – From Traceable Time Source to Traceable Remote Calibration: Andre Charbonneau, Bill Hoger, Deval Patel, Hai Pham, John Bernard and Marina Gertsvolf, National Research Council Canada, Canada

10:05-10:35, Break. Refreshments served in foyer

Session P4b: Alternative Techniques in Time Dissemination Room: Regency A10:15 a.m. – 12:15 p.m.

10:40 A Century of WWV: 100th Anniversary Commemoration: Glenn Nelson, Time and Frequency Division (Radio Stations WWV/WWVB), NIST

11:03 Towards the Quantification of Assured Time: Stefania Romisch, Alexander Radnaev, and Bijunath Patla, NIST

11:26 Huygens: A Scalable Software-based System for Nanosecond-level Accurate Clock Synchronization for Commodity Networks: Yilong Geng, Shiyu Liu, Zi Yin, Ashish Naik, Balaji Prabhakar, Mendel Rosenblum, Amin Vahdat, Stanford University

11:48 Frequency & Time Performance Review of a 500km cascaded WhiteRabbit Link: Namneet Kaur, Florian Frank, Philip Tuckey, Paul-Eric Pottie, Observatoire de Paris/CNRS, France

Session B4: Advanced Integrity for Critical Applications Room: Regency B8:30 a.m. – 12:15 p.m.

8:35 SBAS Corrections for PPP Integrity with Solution Separation: Kazuma Gunning, Juan Blanch and Todd Walter, Stanford University

8:57 Reducing Computational Load in Solution Separation for Kalman Filters and an Application to PPP Integrity: Juan Blanch, Kaz Gunning, Todd Walter, Stanford University; Lance De Groot, Laura Norman. NovAtel, Inc., Canada

9:20 Reliability and Integrity Measures of GPS Positioning via Geometrical Constraints: Hani Dbouk and Steffen Leibniz Universität Hannover, Germany

9:43 Demonstration of Integrity Protection for Multi-Constellation Carrier Phase Solution using RANSAC-based FDE: Zhen Zhu, East Carolina University; Eric Vinande, AFRL


10:40 Dual-Constellation Aided High Integrity and High Accuracy Navigation Filter for Maritime Applications: Shuchen Liu, Jan-Jöran Gehrt, Dirk Abel, and René Zweigel, RWTH Aachen University, Germany

11:03 Ground Monitor Threshold Models of BDS GBAS: Zhipeng Wang, Yu Yin, Qiang Li, Dan Song, Yue Zhang, Beihang University, China

11:26 An Augmentation and Integrity Monitoring Network for Railway and Automotive Transportation: P. Salvatori, C. Stallo, A. Coluccia, RadioLabs, Italy; S. Pullen, S. Lo, Stanford University, A. Neri, Università degli Studi Roma TRE, Roma, Italy

11:48 Implementation and Evaluation of GPS/GLONASS RAIM: Natasha Norris, Frank van Graas, Ohio University, Eric Vinande, Air Force Research Laboratory

Alternates

1. Fault Exclusion Using Single Kalman Filter: Cagatay Tanil, Samer Khanafseh, Illinois Institute of Technology; Mathieu Joerger, University of Arizona; Boris Pervan, Illinois Institute of Technology

2. Questions for Providers of Expert Opinion on Logged GNSS Evidence: Andrew Dempster, University of New South Wales, Australia; Allison Kealy, RMIT University, Australia; Gary Edmond, University of New South Wales, Australia

Session A4: GNSS Remote Sensing, Atmo-spheric Science and Space Applications Room: Grand Ballroom EFG8:30 a.m. – 12:15 p.m.

8:35 Assessment of Ionospheric Spatial Decorrelation for Daytime Operations of GBAS in the Brazilian Region: Hyeyeon Chang, Moonseok Yoon, and Jiyun Lee, Korea Advanced Institute of Science and Technology, South Korea; Sam Pullen, Stanford University; Leonardo Marini Pereira, Institute of Aerospace Control (ICEA), Brazil

8:57 A Comparative Analysis of Polar and Equatorial Scintillation Effects on GPS L1 and L5 Tracking Loops: Caner Savas, Politecnico di Torino, Italy; Gianluca Falco, Istituto Superiore Mario Boella, Italy; Fabio Dovis, Politecnico di Torino, Italy

9:20 Evaluation of Low Latitude Scintillation Data with a Dual Kalman Smoother: Friederike Fohlmeister, German Aerospace Center (DLR), Germany; Felix Antreich, Instituto Tecnológico de Aeronáutica, ITA, Brazil; Volker Wilken, Martin Kriegel, DLR, Germany; João Cesar Moura Mota, André Lima Ferrer de Almeida, Federal University of Ceará (UFC), Brazil; Francisco Geraldo de Melo Pinheiro, State University of Ceará, Brazil; Josef A. Nossek, UFC, Brazil

9:43 Half-year Comparison of Precipitable Water Vapor Retrieved with Novel Ground-based Microwave Radiometer and GPS Receiver at Tsukuba and Numerical Weather Analysis Data: Ryuichi Ichikawa, National Institute of Information and Communications Technology, Japan; Taketo Nagasaki, High Energy Accelerator Research Organization, Japan; Osamu Tajima, Kyoto University, Japan; Hiroshi Takiguchi, Japan Aerospace Exploration Agency, Japan; Kentaro Araki, Takuya Tajiri, Meteorological Research Institute, Japan


10:40 Monitoring Sea Level Change in Arctic using GNSS-Reflectometry: Su-Kyung Kim and Jihye Park, Oregon State University

11:03 GPS and InSAR Inversion for Coseismic Deformation Field and Slip Distribution of the Ms7.0 Jiuzhaigou Earthquake: Huixia Li, Key Lab of Poyang Lake Environment & Resource Utilization, Nanchang University, University of New Brunswick, Canada; Wenhao Wu, Hunan University of Science And Technology, China; Hang Guo, Nanchang University, China; Richard B. Langley, University of New Brunswick, Canada

11:26 Flight Results of GPS-Based Attitude Determination for the Canadian CASSIOPE Satellite: A. Hauschild, O. Montenbruck, German Aerospace Center (DLR) German Space Operations Center (GSOC), Germany; R.B. Langley, University of New Brunswick, Canada

11:48 A Star Tracker for Cubesats - Implementation and Analysis: Wen-Chiao Chen and Shau-Shiun Jan, National Cheng Kung University, Taiwan

Alternate1. The eta-mi Distribution for L-band Ionospheric

Amplitude Scintillation Modeling and the Evaluation of GBAS CAT I Services under Low Latitude Regions: Vicente Carvalho Lima Filho, ITA/IAOP, Brazil; Leonardo Pereira Marini, ITA/ICEA, Brazil; Jonas Sousasantos, Lucas Alves Salles, ITA, Brazil; Eurico R. de Paula, INPE, Brazil; Alison O. Moraes, IAE, Brazil

TECHNICAL SESSIONS THURSDAY MORNING, JANUARY 31


Dr. Carl Milner, ENAC, France

Dr. Ilaria Martini, European Commission (Advisor), Belgium

Dr. Adria Rovira-Garcia, Universitat Politècnica de Catalunya, Spain

Dr. Joon Wayn, CheongUniversity of New South Wales, Australia

Shinn-Yan (Calvin) Lin, Chunghwa Telecom, Taiwan

Dr. Daniele Rovera, Observatoire de Paris, France

12:15 p.m. - 1:45 p.m. • Award Luncheon • Grand Ballroom D (Late arrivals will not be served after 12:30 p.m.)


Dr. Kenneth Senior, U.S. Naval Research Laboratory

Dr. Marina Gertsvolf, National Research Council of Canada, Canada

TECHNICAL SESSIONS THURSDAY MORNING, JANUARY 31

12:15 p.m. - 1:45 p.m. • Award Luncheon • Grand Ballroom D (Late arrivals will not be served after 12:30 p.m.)


TECHNICAL SESSIONS THURSDAY AFTERNOON, JANUARY 31Session P5a: Time Scales and Algorithms Room: Regency A2:00 p.m. – 3:35 p.m.

2:05 The History of the NBS/NIST Time Scale: Judah Levine, Time and Frequency Division NIST

2:27 The New TA(TL) Model Composited by Hydrogen Maser and Cesium Clock Ensembles: Shinn Yan Lin, Telecommunication Laboratories, Taiwan

2:49 Comparing Clock Steering Technique Performances in Simulations and Measurements: Tobias D. Schmidt, Christian Trainotti and Johann Furthner, German Aerospace Center (DLR), Institute of Communications and Navigation, Germany

3:11 The Behavior of Controlled Clocks: Demetrios Matsakis, US Naval Observatory

Alternates

1. Comparison of Clock Models in View of Clock Composition, Clock Steering and Measurement Fitting: Christian Trainotti, Tobias Schmidt, Johann Furthner, German Aerospace Center (DLR), Institute of Communications and Navigation, Germany

2. The Statistics of Computer Clocks and the Design of Synchronization Algorithms: Judah Levine, Time and Frequency Division, NIST

Session P5b: Timing Applications in Financial Markets Room: Regency A3:35 p.m. – 5:10 p.m.

3:40 On Disciplined Oscillators for Traceable Frequency and Time in Metrology and Financial Sectors: Dirk Piester, Andreas Bauch, Thomas Polewka, Egle Staliuniene, Kristof Teichel, Physikalisch-Technische Bundesanstalt, Germany

4:02 UTC-Compliant Leap Seconds in Microsoft Windows: Dan Cuomo, Travis Luke, Sarath Madakasira, Microsoft

4:24 Accurate Local Timestamps: Brooks Harris, EdlMax, LLC

4:46 Re-Thinking Time Keeping for Modern IT Solutions: Son VoBa, Charles L. Ulland, Michael A. Lombardi, Arno Lentfer, Sync-n-Scale

Session B5a: Modernized, Emerging and Future Core GNSS Constellations Room: Regency B2:00 p.m. – 3:35 p.m.

2:05 BeiDou 3 Signal Quality Analysis and its Impact on Users: Steffen Thoelert, German Aerospace Center (DLR) & RWTH Aachen, Germany; Chris-toph Enneking, DLR, Germany; Felix Antreich, Instituto Tecnologico de Aeronautica, Brazil; Mi-chael Meurer, DLR & RWTH Aachen, Germany

2:27 Pure Pilot Signals: How Short can we Choose GNSS Spreading Codes?: Christoph Enneking, German Aerospace Center (DLR), Germany; Felix Antreich, Instituto Tecnologico de Aeronautica, Brazil; Manuel Appel, DLR, Germany; André L. F. de Almeida, Universi-dade Federal do Ceara, Brazil

2:49 Effect of GPS III Weighted Voting on P(Y) Receiver Processing Performance: David Wil-liam Allen, Alberto Arredondo, The Aerospace Corporation; Daniel R. Barnes, U.S. Air Force Global Positioning Systems Directorate; John W. Betz, Alessandro P Cerruti, The MITRE Cor-poration; Benjamin Davidson, Karl L. Kovach, Alexander Utter, The Aerospace Corporation

3:11 General Aviation Collision Avoidance System Based on BeiDou Short Message Service: Liu Ruihua, Xia Tianqi, and Wang Jian, Civil Aviation University of China

Session B5b: Next Generation Receiver and Antenna Technology Room: Regency B3:35 p.m. – 5:10 p.m.

3:40 A MBOC Signal Tracking Algorithm based on Split Processing Technique: Tengfei Da, Xiaowei Cui, Guifeng Fan, Tsinghua University, China; Xueyong Xu, North Information Control Research Academy Group Co., Ltd., China; Mingquan Lu, Tsinghua University, China

4:02 Single-Chip Delivers Multi-Band Multi-GNSS Raw Measurement and Built-In RTK Engine for Mass Market Applications: Ryan K.Y. Yang, Shi Xian Yang, Gary Hau, Chia Wei Sung, Hongtao Yu, Allystar Technology Co. Limited, Hong Kong

4:24 An Flexible Optimization Method for GNSS Receiver Design: Jing Ji, Wei Chen, Wuhan University of Technology, China; Hongyang Lu, Chengwei Huang, Jiantong Zhang, Satellite Navigation Division of China Transport Tele-communication & Information Center, China

4:46 Performance Analysis of Reference Oscilla-tors and Frequency Synthesizers for use in High-Fidelity Satellite Navigation RF Front-Ends: Andrew D. Braun, AFLCMC/EZAC; Sanjeev Gunawardena, Air Force Institute of Technology

Alternate 1. Static and Kinematic Testing and Analysis of the

Tallysman Veraphase VP6000 GNSS Antenna: Ryan M. White, Richard B. Langley, University of New Brunswick, Canada; Julien Hautcoeur, Tallysman Wireless Inc., Canada

Session A5: Navigation Methods for Autonomous Systems Room: Grand Ballroom EFG2:00 p.m. – 5:10 p.m.

2:05 Rural Positioning Challenges for Connected and Autonomous Vehicles: Joseph Walters, Xiaolin Meng, Chang Xu, Hao Jing, and Stuart Marsh, University of Nottingham, UK

2:27 2D Positioning of Ground Vehicles using Stereo Vision and a Single Ranging Link: Chen Zhu, Gabriele Giorgi, German Aerospace Center (DLR), Germany; Young-Hee Lee, Technical University of Munich (TUM), Germany; Christoph Günther, DLR, and TUM, Germany

2:49 Real-Time Drift-Free Path Recording and Replaying Based on Virtual Image Matching For MAVs: Ruihang Miao, Rendong Ying, Zheng Gong, Wuyang Xue, Xiangming Geng, Jun Shen and Peilin Liu, Shanghai Jiao Tong University, & Beijing Unistrong Science and Technology Co., Ltd., China

3:11 Place Classification and Semantic Mapping for MAV Applications: Jamal Atman, Karlsruhe Institute of Technology (KIT), Germany; Gert F. Trommer, ITE, KIT, Germany and ITMO University, Russia

3:40 Detection, Classification, and Tracking of Objects for Autonomous Vehicles: Milan Aryal and Nicholas Baine, Grand Valley State University

4:02 Accuracy and Availability of an Optical Positioning System for Aircraft Landing: Stephan Wolkow, Alexander Schwithal, Maik Angermann, Andreas Dekiert, Ulf Bestmann, TU Braunschweig, Institute of Flight Guidance, Germany

4:24 Advantages and Challenges of using Infrared Cameras for Relative Positioning during Landing: Andreas M. Dekiert, Stephan Wolkow, Maik Angermann, Ulf Bestmann and Peter Hecker, Institute of Flight Guidance, TU Braunschweig, Germany

4:46 Low CSWaP High Performance MEMS 6 DoF IMU for UV Navigation: R. Mark Boysel and Louis J. Ross, MEI Micro, Inc.

Alternate

1. Computationally Efficient Vision-based UAV Positioning: Joakim Rydell, Erika Bilock, Michael Tulldahl, Swedish Defence Research Agency (FOI), Sweden

Stefan Wallner, European Space Agency, The Netherlands

Dr. Changdon Kee, Seoul National University, South Korea

Dr. Stephan Weiss, Alpen-Adria Universität, Austria

Dr. Zhen Zhu, East Carolina University

Dr. Patrizia Tavella, Bureau International des Poids et Mesures

Dr. Jian Yao, National Institute of Standards and Technology

Dr. Zheng Yao, Tsinghua University, China

Dr. Cécile Mongrédien, u-blox, Switzerland

Dr. Judah Levine, National Institute of Standards and Technology

Dr. Elizabeth Laier-English, National Physical Laboratory, UK

EXHIBIT HALL

ITM/PTTI 2019

Show Hours:Tuesday, January 298:30 a.m. – 5:00 p.m. Exhibit Hall Open8:30 a.m. – 10:00 a.m. Exhibitor Hosted Breakfast

Wednesday, January 308:00 a.m. – 4:30 p.m. Exhibit Hall Open

Exhibitors:• Brandywine Communications (Booth 5)• CAST Navigation (Booth 2)• Cycle GmbH (Booth 23)• ENSCO (Booth 24)• Frequency Electronics, Inc. (Booth 3)• The Institute of Navigation (Booth 7)• GuideTech (Booth 4)• Jackson Labs Technologies, Inc. (Booth 10)• Linear Photonics, LLC (Booth 8)• Masterclock, Inc. (Booth 1)• Microchip Technology Inc. (Booth 17)• Oscilloquartz SA (Booth 12)• Spectradynamics Inc. (Booth 20)• Spirent Federal Systems (Booth 13)• Sync-n-Scale (Booth 6)• Syntony GNSS (Booth 19)• TimeTech GmbH (Booth 16)• Vescent Photonics (Booth 22)

Bold = ION Corporate Member List current as of 1/9/19

Exhibit Hall Floor Plan:

Entrance

Att

ende

e D

inin

g A

rea

April 8-11, 2019Hilton Waikiki BeachHonolulu, Hawaii

PACIFIC PNTAloha

fro

m

www.ion.org/pnt

Register and reserve your hotel room by March 8 to take advantage of discounted rates

Where East Meets West

in the Global Cooperative

Development of Positioning,

Navigation and Timing Technology

®


EXHIBIT HALLApril 8-11, 2019Hilton Waikiki BeachHonolulu, Hawaii

PACIFIC PNTAloha

fro

m

www.ion.org/pnt

Register and reserve your hotel room by March 8 to take advantage of discounted rates

Where East Meets West

in the Global Cooperative

Development of Positioning,

Navigation and Timing Technology

®


Ground. Air. Space.Wireless distributed timing technology

www.ensco.com

Visit Booth #24 to learn more about ENSCO Coherent Link Technology

for distributed coherent networks in GPS‑denied environments.

Reston, VA ITM/PTTI Onsite 2019

Documents

Transcript of Reston, VA ITM/PTTI Onsite 2019