Advances in Digital Receiver Technology

Transcription

1 Andreas Radermacher February 2017 Advances in Digital Receiver Technology Raytheon Proprietary/Business Data This document contains proprietary business data or information pertaining to items, components, processes, or other matter developed or acquired by Raytheon Company. It is restricted to use only by persons authorized by Raytheon in writing to use it. Disclosure to unauthorized persons would likely cause substantial competitive harm to Raytheon s business position. This document, data or information shall not be furnished, disclosed to, copied or used by persons outside Raytheon without Raytheon s express written approval. If this business data or information is delivered directly to the U.S. Government pursuant to a proposal or contract, Raytheon s markings on this business data may not be removed or altered. The U.S. Government s rights to disclose or release this proprietary business data or information are limited as specified in the FAR, DFARS or other applicable laws and regulations. Copyright Unpublished Work. Raytheon Company.

2 Goals Design and Develop a Digital Receiver for use from GHz Allow Signal Analysis in Frequency and in Time Domain Maintain Signal Integrity at all Phases of Analysis Allow for Modularity (1 to X Channels) Provide easy Upgrade Path for Product Enhancements Software Defined Receiver Support Scalable Design for Airborne, Naval and Ground Applications Use of COTS hardware wherever possible Minimize Cost of Ownership One System / Multiple Platforms Keep all resulting products free from ITAR constraints Copyright Unpublished Work. Raytheon Company. 6/8/2017 2

3 Copyright Unpublished Work. Raytheon Company. 6/8/2017 3

4 ARDS Mission Small, lightweight, compact design Two sided system fits into a Pod that can be carried under a UAV fuselage or under the wings Total Weight (two sided) : 150 kg Total Power : 28V, 2 x 1kW Initial Platform : GA Predator Copyright Unpublished Work. Raytheon Company. 6/8/2017 4

5 ARDS Mission System is well suited for long range, long endurance reconnaissance missions System will create, modify or update Electronic Order of Battle (EOB) information Precise location and identification of emitters 1-26GHz, optional.5-40ghz Copyright Unpublished Work. Raytheon Company. 6/8/2017 5

6 ARDS Mission High sensitivity over entire frequency range allows detection of most sensors that are above the radar horizon Flexible, upgradable algorithms allow precise measurement of emitter specific parameters Fast detection of blinking emitters Tracking of emitters over time Copyright Unpublished Work. Raytheon Company. 6/8/2017 6

7 ARDS Mission Detection of radars at distances that allow precise analysis and location of the radar while still too far away for the reflected radar signal to travel back to the emitter Copyright Unpublished Work. Raytheon Company. 6/8/2017 7

8 ARDS Mission ARDS is truly passive, no emissions from sensor Very high sensitivity over entire frequency range allows long range reconnaissance Copyright Unpublished Work. Raytheon Company. 6/8/2017 8

9 ARDS Mission Copyright Unpublished Work. Raytheon Company. 6/8/2017 9

10 Block Diagram Limi RF ter switch CH5 Downconversion FSR - AGC Amplifier BIT CH5 ADC FPGA BIT BIT BIT Limi RF ter switch Limi RF ter switch Limi RF ter switch Limi RF ter switch CH4 CH3 CH2 CH1 Downconversion Downconversion Downconversion Downconversion FSR - AGC Amplifier FSR - AGC Amplifier FSR - AGC Amplifier FSR - AGC Amplifier BIT BIT BIT BIT CH4 CH3 CH2 CH1 ADC ADC ADC ADC Activity & DF Signal Process. FPGA Activity & DF Signal Process. FPGA BIT BIT FPGA PDW Assembling Processor CCA Octal Core - Command / Control - Site Reports - Nav data A/C Interfaces - EIA Ethernet - other /5 BIT/CAL Upconversion Level /6 Gain BIT BIT/CAL ADC DAC Activity & DF Signal Process. SSD Controller and EEPROM LO Local Synthesizer Control Control FPGA-Controller High speed serial interface LRU1: Antenna Array LRU2: Frequency Conversion / Full Scale Range Amp LRU3: Analysis Receiver Processor Copyright Unpublished Work. Raytheon Company. 6/8/

11 Hardware Elements Copyright Unpublished Work. Raytheon Company. 6/8/

12 FSRA Output Stage 1 No input signal (noise) Maximum amplification Stage 2 Strong input signal Amplifier chain in compression Stage 3 FSR adjusted output Constant output for ADC Signal integrity ensured Stage 4 No input signal (noise) Copyright Unpublished Work. Raytheon Company. 6/8/

13 LRU3 Digital Receiver/Processor Copyright Unpublished Work. Raytheon Company. 6/8/

14 LRU3 Digital Receiver/Processor Sample Rate 3 GS/s ADC 12 Bit SFDR 52 db min FPGA Virtex 7 External Interface Custom for Platform DAC Output For BIT / CAL Processor P4080 (Octal Core) OS VxWorks 6.8 Removable SSD SATA IF Input 6 Channel IF Bandwidth 1 GHz Firmware Encrypted Copyright Unpublished Work. Raytheon Company. 6/8/

15 Hardware Elements Copyright Unpublished Work. Raytheon Company. 6/8/

16 Firmware Building Blocks Copyright Unpublished Work. Raytheon Company. 6/8/

17 Software Building Blocks Receiver Frontend PDWs Pulse Report Deinterleaving Beams Beams Beams Beams Identification Tracking Ranging System Association Dwell Setup Sites / Beams Dwell Scheduler Library Report Copyright Unpublished Work. Raytheon Company. 6/8/

18 Digital Receiver Performance Frequency Coverage : Frequency Accuracy: Frequency Resolution: Instantaneous Bandwidth: Signal Processing : Sensitivity: Pulse Density: Pulse Width and TOA Resolution: DF Accuracy: Other Features: Chirp Processing Barker Code Detection Additional: UHF to Ku (optional Ka) < 100 khz (Pulse) improves rapidly with stronger signal < 10 khz (CW) improves rapidly with stronger signal 100 Hz or lower 1 GHz Up to 4 signals simultaneously Minimal -84 dbm (for instantaneous bandwidth 1GHz) Pulse/sec min. 10 ns < 0.5 (depending on Antenna Array and Signal) 500 MHz/µs 7, 11 and 13 bit (extendable for general PSK) QAM, Rise / Fall Time Copyright Unpublished Work. Raytheon Company. 6/8/

19 Backup Copyright Unpublished Work. Raytheon Company. 6/8/

20 Who we are Raytheon Deutschland GmbH 50 dedicated employees, 600+ man years of EW experience Design Authority for the ECR Tornado s Emitter Location System (ELS) Hardware Repair, Maintenance & Logistics for Luftwaffe and Italian Air Force Software development for ELS, digital ELS and ARDS Threat library support Operational Experience Copyright Unpublished Work. Raytheon Company. One Stop EW Support HW, SW, Library Development, Built & Test 6/8/

21 What we do Digital Receiver Development Hardware, Firmware, Algorithms Application Software Integration & Test Flight Test Support Training Threat Library Support Library Generation and Verification In-House Testing & Flight Test Support One Stop EW Support HW, SW, Library Development, Built & Test, Training Copyright Unpublished Work. Raytheon Company. 6/8/

22 Background Design Authority for German Air Force ECR Tornado Emitter Location System. Designed, Developed and Built a Digital Receiver to replace the analog ECR ELS free of ITAR constraints! Copyright Unpublished Work. Raytheon Company. 6/8/