ELECTRONIC WARFARE SOUTH AFRICA 2017 International Conference & Exhibition

Transcription

1 ELECTRONIC WARFARE SOUTH AFRICA 2017 International Conference & Exhibition 6-8 November 2017 CSIR, Pretoria Increase Capabilities Between Lab and Real World Test for Radar and Communication Signals with a Modern T&E Architecture

2 Increase Capabilities Between Lab and Real World Test for Radar and Communication Signals with a Modern T&E Architecture EW Aerospace South Defense Africa 2017 Symposium Darren Nicholls Marketing Industry Manager Aerospace and Defense EMEAI Region

3 Agenda Introduction Challenges of Simulating Threat Environments Software Simulation Hardware Simulation Conclusion

4 A Brief History of Keysight : Hewlett-Packard years A company founded on electronic measurement innovation : Agilent Technologies years Spun off from HP, Agilent became the World s Premier Measurement Company. In September 2013, it announced the spinoff of its electronic measurement business 2014: Keysight begins operations November 1, Keysight is an independent company focused 100% on the electronic measurement industry We believe in Firsts Bill Hewlett and Dave Packard s original vision launched Silicon Valley and shaped our passion for firsts 75 years ago. Today we are committed to provide a new generation of firsts software-oriented solutions that create value for our investors and valued insights for our customers. Page 4

5 We Help Companies Unlock Insights to Succeed Communications: From the speed of innovation to the cost of test, time-to market pressures have never been greater. We help companies win in the first to market race. Industrial, Computers, Semiconductors: Electronic content is everywhere. Explosive growth calls for a proven partner. We help customers across design, verification and manufacturing to installation and maintenance. Aerospace Defense: Where there s no room for compromise, we help customers reduce risk. We help customers update their radar, satellite and communication systems to free up time to focus on where it counts the most. Page 5

6 Agenda Introduction Challenges of Simulating Environments Software Simulation Hardware Simulation Conclusion

7 Challenges of Simulating Environments Difficulties with Flight Testing Goal is to only perform in flight what cannot be achieved on the ground. Expensive to fly airplanes $40K/hour for flight test $100K/hour for 2 plane flight test Repeatability nearly impossible Aircraft testing and evaluation costs Page 7

8 Challenges of Simulating Environments Realism Challenges Ease of design changes FLEXIBILITY VS. DESIGN PHASE Design flexibility Easiest to iterate and debug in this phase. Time to market is not significantly impacted. Time to market slows and design changes are increasingly burdensome Design realism Page 8

9 Challenges of Simulating Environments Difficulty in Generating Realistic Signals An EW environment will have thousands of emitters. Simulating this environment is a major challenge, especially in the design phase, when design flexibility and productivity are at their greatest. The best way to achieve this is to simulate many emitters with a single source, and to employ multiple sources. Page 9

10 Radar Threats are Becoming More Sophisticated Impacts EW Receiver Designs and How We Test Them H Sensitivity Range (Increasing) M LPI (Lower Probability Of Intercept) Frequency Accuracy H M Older Radars M L Rx EW SUT Resolution (Increasing) M 1 Million P/S 2 Million P/S Multiple Threats (Increasing!) H Pulse Density 10 Page 1 0

11 Agenda Introduction Challenges of Simulating Environments Software Simulation Hardware Simulation Conclusion

12 Continuous validation. Faster design. Less R&D effort. Connecting domains. IP Reference Libraries 5G-4G LTE-A, LTE, HSPA+,3G,2G WLAN a/b/g/n/ac/ad/ah DVB S2/S2X, DOCSIS Defense Radar, SatCom, Modem Quickly capture system level design concepts Model implementation-level impairments BB Algorithm Modeling MATLAB.m FixedPoint, HDL/FPGA Embedded C++ Filtering, EQ, Modem RF / Analog Channel Modeling Phase Array/Beamforming Digital Pre-Distortion (DPD) MIMO/mm-wave Channel RF System Design Test Software I/O Lib, ComExpert VSA Signal Studio 3 rd Party Test Equipment RF Sources & Analyzers AWG & Digitizers Scopes, Logic, Modular Connect BB, RF, and Test for rapid prototyping and earlier validation Use the same tool and IP throughout the R&D workflow Page 12

13 SystemVue support for Standards & Verification Instrument-grade functional pre-compliance for algorithms/links SystemVue Baseband Verification Libraries 3G/4G/5G MOBILITY 5G and LTE-A (Rel 10-13), LTE (Rel 8,9) WCDMA, HSPA+, CDMA, CDMA2000 GSM, EDGE LOCAL CONNECTIVITY WPAN / c ad Zigbee^ / Bluetooth ^ available with W1461BP core environment NETWORKING WiMAX / e WLAN /802.11abgnp/ac/ah/x 60GHz ad Custom OFDM^ BROADCAST & SATCOMM DVB-S2/S2X, ISDB-T DOCSIS, OFDM General Digital Modem GNSS sat nav DEFENSE RADAR: PD, UWB, FMCW, SAR, DAR, SFR, MIMO, Phased Array External waveform references M1 {MATLAB_Script@Data Flow Models} MATLAB co-simulation Capture signals from test equipment (SDF) Read IQ data files Coordinated licensing w/signal Studio.WFM (options 7NP, 7FP) Page 13

14 W1905 Radar Model Library Reference algorithms for Radar/EW systems, scenarios, verification Tx Waveform Pulse Generator LFM NLFM BarkerCode FrankCode ZCCode Antenna Taylor Uniform Cos^2 Tx / Rx Components Tx Front-end Rx Front-end DUC DDC DAC ADC PA Filter DDS T/R Module Measurement Basic Tx Basic Rx Antenna Pattern Imaging Plot Detection Rate False Alarm Rate EW Models Signal Detection EW Receiver ECM, EP, ES Direction of Arrival Environment Target RCS Clutter Jammer Interference Systems DAR/SAR PD UWB FMCW SFR EW PAA MIMO Radar Signal Processing Digital Pulse Compression (PC) Moving Target Indication (MTI) Moving Target Detection (MTD) Pulse Doppler Processing (PD) [2] Constant False Alarm Rate (CFAR) Digital Beam-forming 3D Space-Time Adaptive Processing (STAP) Page

15 SystemVue pulls Radar/EW Systems together Baseband Algorithm Modeling, Implementation MATLAB code, C++, VHDL/Verilog, SystemC, Hardware-in-Loop System level simulation SystemVue Dataflow, Reference IP, RF-DSP co-verification, Links to Test Antenna / Beamforming Finite-Difference Time-Domain, Finite-Element Technology T/R module Architecture SystemVue Spectrasys Design & Test integration 3 rd Party API Scenarios, Embedding Automation Physical RF Sim & Layout ADS, Momentum, Thermal Module simulation Method-of-moments technology Page

16 Agenda Introduction Challenges of Simulating Environments Software Simulation Hardware Simulation Conclusion

17 Signal Simulation Communication Signals Two types to consider Non-Signalling - Physical Layer Generation Full Signalling - Base Station / Mobile Emulation Page 17

18 Non-Signaling Simulation Analog signal generators Analog signal generators supply sinusoidal continuous wave (CW) signals with optional capability to add AM, FM,ΦM and pulse modulation. Agile signal generators Agile signal generators are optimized for speed to quickly change frequency, amplitude, and phase of the signal. They also have the unique capability to be phase coherent at all frequencies, all of the time. This attribute, along with extensive pulse modulation and wideband chirp capabilities, is ideal for electronic warfare (EW) and radar applications. Vector Signal Generators Vector signal generators or digital signal generators have a built-in I/Q modulator to upconvert complex modulation formats such as QPSK and 1024QAM. When combined with an IQ baseband generator, virtually any signal can be emulated and transmitted within the information bandwidth supported by the system. Page 18

19 Vector / Baseband Signal Generation Signal Studio Systemvue Matlab LTE & LTE-Advanced FDD/TDD W-CDMA/HSPA+, cdma2000, 1xEV-DO, GSM/EDGE/ Evo, TD-SCDMA Cellular communications Wireless connectivity WLAN a/b/g/j/p/n/ac/ad/ah DFS Mobile WiMax, Fixed WiMax Bluetooth, Bluetooth Low Energy Wi-SUN g Flexible Signal Generation DVB-T/H/T2/C/S/S2 ATSC, ATSC-M/H, J.83B (DOCSIS) ISDB-T/TSB/TB/Tmm DTMB(CTTB), CMMB DAB/DAB+/DMB/T-DMB AM, FM, FM Stereo RDS/RBDS Audio/video broadcasting Detection, positioning, tracking & navigation Pulse building GPS, GLONASS, Galileo, Beidou, SBAS, QZSS, radar 19 Page

20 Selecting a High-Speed AWG M8190A 12/14 bit res. 12/8 GSas/s 5 GHz BW SFDR up to 90 dbc Applications Radar / EW Satellite Wideband Wireless (5G) M8195A Up to 65 GSa/s 25 GHz BW Up to 4 ch. 8 bit resolution Applications 32 GBd PAM4 Coherent optical RF with > 4 GHz modulation BW M8196A Up to 92 GSa/s 32 GHz BW 4 channels 8 bit resolution limited playtime Applications 56 GBd PAM4 Coherent optical Page

21 Comparison Analog vs Digital Up conversion Analog I/Q up conversion causes distortions Best signal qualtiy Analog I/Q modulation Analog I and Q signals are generated using an AWG. An I/Q modulator generates the IF or RF signal I Digital up-conversion I/Q modulation is performed digitally and in real-time. The multiplication with a carrier signal is performed digitally. IF Q Digital signal Analog signal Page 21

22 Agile Generator EW/Radar Simulation in the lab Make EW system think that it is flying in a multi-emitter environment This..must look like this: Page 22

23 Signal Studio for Multi-emitter Scenario Generation (MESG) Enables Creation of platforms, emitters, and waveforms with kinematics and angle-of-arrival. Interleaves emitters and computes dropped pulse reports based on number of UXGs in the system and pulse coincidence (pulse-on-pulse). Graphical results are displayed in time domain analysis window Saves pre-computed scenarios to local hard disk for LAN streaming playback or uploads scenario directly to solid state disks on UXGs in test system. Page 23

24 Agile Generator EW Generator 24 Page

25 Agile Generator EW Generator 3 Channel System 0-40 GHz 3 Pulses at Same Time Analog 4 Port DOA System 0-40 GHz1 Pulse at Same Time Analog 1 RF Connection 4 RF Connections Vector Vector 1 RF Connection 4 RF Connections 25 Page

26 Full Signaling Solutions Base / Mobile Station Emulator Offers full protocol capabilities Throughput Testing Handovers from Cell to cell Handovers from one standard to another Easy to put a mobile device into a call and measure RX / TX and BER during call. 26 Page

27 Challenges Why Lab based virtual field testing Complexity of modern SDR based radio systems requires extensive amount of testing. It is crucial to verify operation under conditions they are designed to be used. Field testing is generally unrepeatable and expensive - and not always possible with early stage prototypes. Tracing an issue that happens occasionally can be impossible. Page 27

28 Real World Impairments Calibrated AWGN, Add AWGN to any signal played by arbitrary waveform or real-time baseband generator Generate stand alone AWGN Set AGWN level as a C/N ratio Set Eb/No, Ec/No, or C/N Phase Noise Impairment, Set start/stop (min 0 Hz/max 77 MHz) frequency offsets of pedestal phase noise region Set level of additive pedestal phase noise Real-time phase noise added independent of waveform playback 28 Page

29 Capture and Playback Solutions Capture PXA Stream Digital I/Q Samples Record IQC5000A Series Stream Analog I/Q Samples Playback PSG RF Output or or MXA EXA Up to MHz BW = 22 hours LAN Control PCIe Offload Analyze SW Tools Spectro-X RF Editor 89600B Matlab MXG EXG or or Use X-Series signal analyzer as RF front-end Continuously record 100% of RF spectrum No need for prior knowledge of signal characteristics Search and ID Signals of Interest Manipulate recordings for margin and stress tests Keysight VSGs recreates RF at any desired frequency Capture and Playback with Exceptional Signal Fidelity 29 Page

30 Streaming and Recording Reference Systems Multi-module Multi-channel streaming architecture The system includes: U5303A Digitizer Recommended host computer, SSD and controllers Associated software Up to 4x M9203A RAID-Controller Streaming & Recording Command Line Application M9048A PCIe Desktop Adapter HP Z440 host computer WaveCut Data Viewer Application* Up to 3 x M9703B Y1202A 8 or 16 TB SSD Analysis Application (VSA or other) Note: The analysis application can run on a different computer than the one used for streaming & recording. Page

31 Agenda Introduction Challenges of Simulating Threat Environments Software Simulation Hardware Simulation Conclusion

32 Conclusion Page 32

33 Conclusion Software Simulation On comparing simulation environment with the real world: You will always need measurement for verification of the virtual world. And there may be issues with simulations versus measurements. We have been preaching for a while the so-called Learning Design Cycle. Basically this means that your R&D departments spends time in investigating what is causing the discrepancies. This way over time you can improve your models and the results virtual environment. Eventually you will get closer to a first time right design process Hardware Simulation Can create everything from simple signals to test components, sub modules through to complex scenarios for system testing. Upfront cost can be an issue Return of Investment over time. Field trials Can be expensive, time consuming and not repeatable, but it is the ultimate system test the key is to iron out any issues to avoid downtime. Ideal scenario is to have a combination of Software / Hardware simulation tools that not only can you use through the whole design to delivery cycle, but also works together to improve the whole process. Page 33

34 Questions? Page 34