Advanced Topics In Digital Signal Processing

24
ADVANCED TOPICS IN DIGITAL SIGNAL PROCESSING An Examination of DSP in Modern Fourth Generation Modems ADVANCED TOPICS IN ADVANCED TOPICS IN DIGITAL SIGNAL PROCESSING DIGITAL SIGNAL PROCESSING An Examination of DSP in Modern An Examination of DSP in Modern Fourth Generation Modems Fourth Generation Modems fred fred harris harris San Diego State University San Diego State University Applied Technology Institute 349 Berkshire Drive Riva, Maryland 21140 888-501-2100/410-956-8805 Website: www.ATIcourses.com Email: [email protected] ATI Course Schedule: http://www.ATIcourses.com/schedule.htm ATI’s Advanced Topics In Digital Signal Processing: http://www.aticourses.com/advanced_topics_digital.htm

description

Advanced Topics In Digital Signal Processing Course Sampler

Transcript of Advanced Topics In Digital Signal Processing

Page 1: Advanced Topics In Digital Signal Processing

ADVANCED TOPICS IN DIGITAL SIGNAL PROCESSING

An Examination of DSP in Modern Fourth Generation Modems

ADVANCED TOPICS IN ADVANCED TOPICS IN DIGITAL SIGNAL PROCESSINGDIGITAL SIGNAL PROCESSING

An Examination of DSP in Modern An Examination of DSP in Modern Fourth Generation ModemsFourth Generation Modems

fredfred harrisharrisSan Diego State UniversitySan Diego State University

Applied Technology Institute 349 Berkshire Drive Riva, Maryland 21140 888-501-2100/410-956-8805 Website: www.ATIcourses.com Email: [email protected]

ATI Course Schedule: http://www.ATIcourses.com/schedule.htm ATI’s Advanced Topics In Digital Signal Processing: http://www.aticourses.com/advanced_topics_digital.htm

Page 2: Advanced Topics In Digital Signal Processing

Register online at www.ATIcourses.com or call ATI at 888.501.2100 or 410.956.8805 Vol. 95 – 51

Course Outline1. Introduction. An examination of Past,

Present, and Future Digital Modulation Systems.2. Digital Filters. FIR Filters, Resampling

Filters, Interpolators and Decimators, Half BandFilters, Cascade-Integrator-comb (CIC) filters,Hogenauer Filters, Multirate IIR filters.

3. Channelizers. Modulation andDemodulation. Design Techniques. WorkloadComparisons.

4. Filter Design T echniques. WindowDesigns and Performance considerations.Equiripple Designs. System Considerations.Options to Improve System Performance. FiniteArithmeticWindow Designs and Performanceconsiderations. Equiripple Designs. SystemConsiderations. Options to Improve SystemPerformance. Finite Arithmetic.

5. Digital Baseband T ransmission. TheNyquist Filter, Excess Bandwidth, MatchedFilters, Square-Root Nyquist Filter, Shaping andUp-Sampling Filters.

6. Pre-and Post-Signal Conditioning.Analog Filters, Timing Jitter, Direct DigitalSynthesizers, CORDIC processors, DigitalOscillators, Interpolating and Decimating Filters inA-to-D and D-to-A, AGC, DC Canceling, I-QBalancing.

7. Sigma-Delta Converters. A-to-D, D-to-A,D-to-D. Multi-loop Converters, Wide-BandConverters. System Considerations.

8. Carrier Centered Modulation andDemodulation. Shaping and Interpolation,QPSK, QAM, Digital IF Options, OFDM, LegacyAnalog modulation and Demodulation in DSP. FMModulation and demodulation.

9. Synchronization. The Phase LockedLoop, Proportional plus Integral Loops, PhaseRecovery, Band Edge Filters in FrequencyRecovery, Timing Recovery, Polyphase Filters inTiming Recovery.

10. Adaptive Filters. LMS Algorithm, RLSAlgorithm, Lattice Filters, Linear Equalization,Adaptive Equalization, Decision FeedbackEqualizers, Constant Modulus (Blind) Equalizers.

11. Modem Structures. Wireline, Cable,Satellite, and Terrestrial modems andconsiderations.

SummaryThis four-day course is designed for

communication systems engineers,programmers, implementers and managers whoneed to understand current practice and nextgeneration DSP techniques for upcomingcommunication systems. DSP is more thanmapping legacy analog designs to a DSPimplementation. To avoid compromise solutionappropriate for an earlier time period, we return tofirst principles to learn how to apply new

technology capabilities tothe design of nextgeneration communicationsystems.

Students will receive acopy of the instructor’snew textbook, MultirateSignal Processing forCommunication Systems,published by Prentice Hall.

Advanced Topics in Digital Signal ProcessingAn Examination of DSP in Modern Fourth Generation Modems

InstructorDr. fred harris teaches at San Diego State

University where he occupies the CUBIC SignalProcessing Chair. His teaching andresearch areas include Digital SignalProcessing, Multirate SignalProcessing, Communication Systems,Source Coding and Modem Design. Hehas extensive practical experience incommunication systems, high

performance modems, sonar and advanced radarsystems and high performance laboratoryinstrumentation. He holds a number of patents onMultirate Signal Processing for Satellite and CableModems and lectures throughout the world on DSPapplications. Dr. harris recently published a textbookthrough Prentice Hall entitled Multirate SignalProcessing for Communication Systems. He consultsfor organizations requiring high performance, cost-effective DSP solutions.

What You Will Learn• How to size and design filters for a specified

processing task• Effects of Finite Arithmetic on Different Filter

Architectures• Understand Multi-rate Signal processing for Sample

Rate Changes• Understand Multi-rate Signal processing for

Intentional Aliasing• DSP Based Signal Enhancement and Signal

Conditioning • DSP Based Synchronization Techniques• Limitations and Boundaries of DSP Based Solutions.

Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Page 3: Advanced Topics In Digital Signal Processing

www.ATIcourses.com

Boost Your Skills with On-Site Courses Tailored to Your Needs The Applied Technology Institute specializes in training programs for technical professionals. Our courses keep you current in the state-of-the-art technology that is essential to keep your company on the cutting edge in today’s highly competitive marketplace. Since 1984, ATI has earned the trust of training departments nationwide, and has presented on-site training at the major Navy, Air Force and NASA centers, and for a large number of contractors. Our training increases effectiveness and productivity. Learn from the proven best. For a Free On-Site Quote Visit Us At: http://www.ATIcourses.com/free_onsite_quote.asp For Our Current Public Course Schedule Go To: http://www.ATIcourses.com/schedule.htm

Mark Zimmerman
Typewritten Text
349 Berkshire Drive Riva, Maryland 21140 Telephone 1-888-501-2100 / (410) 965-8805 Fax (410) 956-5785 Email: [email protected]
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
philiptravers
Typewritten Text
Page 4: Advanced Topics In Digital Signal Processing

What you will Learn• How to Size and Design Efficient Digital Filters • Effects of Finite Arithmetic on Different Filter

Architectures • Understand Multirate Signal processing for Sample Rate

Changes• Understand Multirate Signal processing for Intentional

Aliasing• DSP Based Signal Enhancement and Signal Conditioning• DSP Based Synchronization Techniques• Limitations and Boundaries of DSP Based Solutions

Page 5: Advanced Topics In Digital Signal Processing

Topics• Digital Filters• Channelizers• Filter Design Techniques• Digital Baseband Transmission• Pre and Post Signal Conditioning• Sigma-Delta Converters• Carrier Centered Modulation and Demodulation• Synchronization• Adaptive Filters• Modem Structures

Page 6: Advanced Topics In Digital Signal Processing

What the Customer Expects

Page 7: Advanced Topics In Digital Signal Processing

It all Started with….

Page 8: Advanced Topics In Digital Signal Processing

Regenerative Receiver

Page 9: Advanced Topics In Digital Signal Processing

TRF: Tuned Radio Frequency

Note Real Breadboard

Page 10: Advanced Topics In Digital Signal Processing

Superheterodyne

Patent Disclosure: June 3, 1918

Page 11: Advanced Topics In Digital Signal Processing

Receiver Requires Copy of Carrier

x(t)

A cos( t)cos( t+ (t))

cos( (t))

sign[cos( t)]

N(t)

Low Pa ss Filte r

Idea lChannel

x(t)

A cos( t)

Low Pa ss Filte r

Idea lChannel

m

Sign

N(t)

A x(t)+ (t)NI2

[A+ A m x(t) + (t)] NI2

A2

95% energy in ca rrier

( ) 2

Page 12: Advanced Topics In Digital Signal Processing

Carrier Recovery PLL

Page 13: Advanced Topics In Digital Signal Processing

Harry Nyquist (1889-1960)

fS>BWThe Sampling Theorem

Page 14: Advanced Topics In Digital Signal Processing

Analog to Digital Converter

Page 15: Advanced Topics In Digital Signal Processing

The Modern EraADC and DSP Insertion

Page 16: Advanced Topics In Digital Signal Processing

IF Sampling

Page 17: Advanced Topics In Digital Signal Processing

Timing Correction in DSP Land

Page 18: Advanced Topics In Digital Signal Processing

Digital Receiver: Asynchronous Carrier and Sampling Clock

Page 19: Advanced Topics In Digital Signal Processing

DSP Based Receiver

Pa ra lle l to Se ria l

Ma ppingAlgorithm

Polyphase Ma tched Filter 40-to-1

Polypha seDownsample Filter 4-to-1

Polyphase Deriva tive Ma tched Filte r

PolyphaseBa nd-Edge Filter

Timing Loop

AGCControl

Equa lize r 2-to-1 Downsa mple

LMSAlgorithm

Signa l PresentDe tector

CarrierLoop Filte r & DDS

Detector

Ana logBa nd Pa ss Filter

10-BITADC

Sta te Machine

QPSK/QAM

ControlSigna ls

Ouput Da ta0.25/0.5/1.0 MB/S Bina ry

Symbols125/250/500 Kwords/sec

Detected Symbols125 K sym/sec

250 KS/S

125 KS/S

40.0 MS/S

10.0 MS/S

CenterFrequency Se lection

VGA

-

*

Page 20: Advanced Topics In Digital Signal Processing

Polyphase Multichannel Receiver

IFSTAGE

ADC

PHASE-1

PHASE-39

PHASE-0

TIMINGRCVRY

VCO PHASEROTATORS

80-PNT Rea l FFT

or 40-PNTComplex FFT

PHASE-2

PHASE-38

Channel Select andProcess

fsfc

......

......

...

......

......

...

......

......

...

Page 21: Advanced Topics In Digital Signal Processing

Time Series: 40-Channel Polyphase Filter Bank

010

2030

4050

6070

8090

100

0

5

10

15

20

25

30

35

40

0

0.2

0.4

0.6

0.8

tim e

c e nte r fre que nc y

mag

nitu

de

Page 22: Advanced Topics In Digital Signal Processing

Polyphase Channelize1-Wideband and 7-Narrowband CDMA Signals

-6 -4 -2 0 2 4 6-100

-80

-60

-40

-20

0

S pectra ups ampled to 15.36 MHz and up converted in polyphas e filter

Frequency (MHz)

Log-

Mag

(dB

)

-2 0 2-100

-80

-60

-40

-20

0

S pectrum: S -1 at 6.144 MHz

-2 0 2-100

-80

-60

-40

-20

0

S pectrum: S -2 at 6.144 MHz

-2 0 2-100

-80

-60

-40

-20

0

S pectrum: S -3 at 6.144 MHz

-2 0 2-100

-80

-60

-40

-20

0

S pectrum: S -4 at 6.144 MHz

-2 0 2-100

-80

-60

-40

-20

0

S pectrum: S -5 at 6.144 MHz

Page 23: Advanced Topics In Digital Signal Processing

Related Publicationsf.j harris,

“On the Relationship Between Multirate Polyphase FIR Filters and Windowed, Overlapped FFT Processing”, Twenty-third Annual Asilomar Conference on Signals and Computers, 1989.

• D. Elliot, Editor,“Handbook of Digital Signal Processing: Engineering Applications”,

Academic Press, 1987, Chapter 8, “Time Domain Signal Processing with the DFT”, pp 639-666.

•f.j. harris and M. Rice,“Multirate Digital Filters for Symbol Timing Synchronization in Software Defined Radios”, IEEE Journal on Selected Areas in Communications, Vol. 19, pp. 2346-2357, Dec. 2001.

•f.j. harris, C. Dick, and M. Rice,“Digital Receivers and Transmitters Using Polyphase Filter Banks for Wireless

Communications”, IEEE Microwave Theory and Techniques, Vol. 51, No. 4, April 2003, pp.1395-1412

Page 24: Advanced Topics In Digital Signal Processing
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
You have enjoyed an ATI's preview of
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Advanced Topics In Digital Signal Processing
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
http://www.aticourses.com/wordpress-2.7/weblog1/
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Please post your comments and questions to our blog:
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Mark Zimmerman
Typewritten Text
Sign-up for ATI's monthly Course Schedule Updates :
Mark Zimmerman
Typewritten Text
http://www.aticourses.com/email_signup_page.html
Val Travers
Typewritten Text
Val Travers
Typewritten Text
Val Travers
Typewritten Text
Val Travers
Typewritten Text