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Moscow, October 29-30, 2012 г.

IMA International Conference

Integrated Modular Avionics.

Current state and vision of the future

development.Prospects of the integrated airborne CNS/ATM radio systems design

based on IMA technologies

Shadrintsev N.

GosNIIAS

Integrated Modular Avionics International Conference

Agenda

1. Targets of the IMA radio systems development projects.

2. Basic principles of the airborne radio systems design within framework of the IMA & SDR technologies.

3. Current state of the airborne communication, navigation & landing and surveillance IMA radio systems development process.

4. Combined CNS/ATM IMA radio system design concept.

5. Combined CNS/ATM IMA radio system design issues.

6. Conclusion.

Targets of the IMA radio systems development projects.

• To adapt the IMA principles for the peripherical radio systems that successfully applied during processing core development.

• Moving from closed architecture of the federated radio equipment (blocks и systems) to open modular structure of the communication, navigation & landing and surveillance IMA systems.

• Development of the second generation radio technical system with communication, navigation & landing andsurveillance functions based on IMA technologies.


Modular HW platform

Real-time OSARINC 653

with resource sharing

VPX mechanics (ANSI/VITA)

AFDX switched network

Modular application SW

Communication Radio SystemNavigation and landing Radio SystemSurveillance Radio SystemIntegrated CNS/ATM system

Mode and parameter

setting by SW

HW independent on signal type

Minimum analog processing

Signal processing by SW

IMA principles

SDR principles

System SDR interface

(VITA 49.0 / 49.1)

Basic principles of the airborne radio systems design

within framework of the IMA & SDR technologies.


IMA RF module or external RF unit IMA coreIMA radio processing platform

WidebandRF circuit

12

3

Signal processing

Modem Codec

Data processing

Modem Codec

Modem Codec

End Applications

Application 1

Application 2

Application 3

CNS Radio Management

DataRouting

Bu

ffe

rin

g

Form

at c

on

vers

ion

2

3

1

2

3

1

2

3

1

2

3

IF Signal samplesANSI/VITA 49AFDX Network

1

Data packetsApplication data formatAFDX Network

Function-Specific Data Processing

M M M M

1

2

3

M

Integrated CNS applications

Analog processing,

DAC/ADCSignal processing Signal processing Applications

Modes and settings management

ReceiverTransmitter

DAC/ADC

IMA & SDR radio system architecture


HW modular design


Unified components:system (core) cratesconcentrator cratesrugged concentrator crates

Standard plug-in modules: Processor

AFDX network switch

Power supply

Optic media convertor

3U crate 6U crate

Mezzanine

3U module

6U module

Standard plug-in mezzanines:Graphic controller

Mass storage

Avionic interfaces (ARINC 429, ARINC 825, Mil1553B)

Analog & discrete I/O

New modules & mezzanines: RF receiver/transmitter

Digital signal processor

Digital voice switch

IP router with network core functions

Advantages of the IMA & SDR technologies applying in

radio system development

SDR advantages:Flexible tuning of the radio channel and work modeMultichannel signal processingDecrease quantity of the RF blocks and antennasSW upgrading and developing

IMA advantages:Platform resources sharing usagePlatform resources segregation between applicationsGuarantee the required safety level redundancyOpen scalable architecture


Current state of the airborne communication, navigation & landing and surveillance IMA radio systems development process.


IMA radio surveillance system.“VNIIRA-Navigator” and “Contur-NIIRS”

IMA radio communication system.“Polet”

IMA radio surveillance system.“VNIIRA-Navigator”

Combined CNS/ATM IMA radio system design concept.

Combined L-band radio block

Combined communication and navigation VHF/HF RF block

Combined DSP for communication, navigation & landing, surveillance

Modular SW application and signal processing

Step 2: Second generation IMA radio system constituent element design

IМА CNS/ATM system

Step 3: Radio system intergation

РЧ по диапазонам

ЦОС

МУПД

Комм./маршрутизатор

РЧ по диапазонам

ЦОС

МУПД

Комм./маршрутизатор

RF units splitted by radio bands

DSP

Data processing

Routing


Uniform modular design

Mechanics as per ANSI VITA 46/48

AFDX ARINC 664 interfaces

ARINC 653 data processing

Software-defined signal processing

ANSI VITA 49 SDR interfaces

Wideband multi-channel RF parts

Step 1: Current status

IMA radio communication system

IMA radio navigation system

IMA radio surveillance system

Comm RF units

Comm DSP

Data processor

Voice switch

Nav RF modules

Nav DSP

Data processor

WXR unit

ISS RF module

ISS DSP

Uniform DSP modules

Uniform internal interfaces

Uniform RF modules per band

Data & Voice Switching integration

Common crate design

Common ARINC 653 OS

ISS I/F module

Communication, navigation & landing and

surveillance IMA radio systems (IМА CNS)

DSP #1

DSP #2

Data Proc #1

Data Proc #2

AFDX/IP

Power

Крейт #1 Крейт #2

UH

F #2

HF/V

HF #1

HF/V

HF #2

HF/V

HF #3

AFDX / VITA 49 (signal samples)

To IMA core and others airborne systems: AFDX networks

Крейт #3

DSP #1

DSP #2

Data Proc #1

Data Proc #2

AFDX/IP

Power

DSP #1

DSP #2

Data Proc #1

Data Proc #2

AFDX/IP

Power

Ant coupler

UH

F #1

GN

SS

GN

SS

SATC

OM

SATC

OM

WX

R

RA

#2

RA

#1

RA

#1

Transmitting and receiving: voice/data HF and VHFreceiving: VOR, ILS, MKR, VDB, ADF

Transmitting and receiving: ВОРЛ, TCAS, АЗН-В, DME

Receiving: GNSS, SBAS Transmitting and receiving: voice/data SATCOM

Weather radar data Radaraltimetr data


Advantages of the combined IMA radio system

• Decrease quantity of the RF and DSP units due to simultaneous signal processing.

• Improve radio technical characteristics, power reduction and increase reliability of the transmitters, improve electromagnetic environment and temperature conditions in crates in case of external RF units placement near antennas.

• Reduce size and weight of the radio equipment and feeder lines.

• New CNS/ATM functions can be easily implement by software application


Combined CNS/ATM IMA radio system design

issues.

1. To design the multichannel wideband RF units:• Research of the electromagnetic environment issues in case of multichannel work• Providing with dynamic range, linearity and operation time characteristics of the DAC/ADC• Research of the RF units placement variants on the board.• Research of the antennas sharing utilization

2. To utilize the active antennas and spatial signal processing:• Research of the active antennas and active grid antenna arrays utilization expedience for different

types of the signals• Analysis of the operational characteristics and repair capability of the active antennas• Design of the signal processing schemes with spatial diversity.

3. To choose the high speed interface for RF units:• Analysis and test of the different airborne interfaces during transmitting of the signal samples streams• Research of the AFDX airborne network utilization expedience• Analysis of the ANSI/VITA 49.0 и 49.1 protocols for transmitting of the signal samples streams

4. Reliability and safety during simultaneous signal processing:• Safety research in case of the resources splitting during signal processing• Choose the optimal architecture of the unified DSP

5. Standardization and Certification issues.• Issue of the IMA radio technical systems standards• Define the methods and procedures of the IMA radio technical systems certification


International Conference

Thank you!

Moscow, October 29-30, 2012 г.

Prospects of the integrated airborne CNS/ATM radio systems design

based on IMA technologies

Shadrintsev N.

GosNIIAS

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