Emily_DRFM_RTS_CN

1、 Synopsis Corporation Group all rights reserved 2012 - Presentation 1 - DRFMs 数字射频存储器(Digital Radio Frequency Memory) Synopsis Corporation Group all rights reserved 2012 - Presentation 2 - 应用应用Applications A/DD/AMemory数字转换器数字转换器DigitizerArbitrary Waveform Generator (AWG)Direct Digital Synthesizer (D

2、DS) Digital Radio Frequency Memories (DRFM) 123Digital Receiver Synopsis Corporation Group all rights reserved 2012 - Presentation 3 - Digital Radio Frequency Memories (DRFM) are used= RF信号存储信号存储to store RF signals= 可编程时间延迟并回放（距离延迟）for replay after a programmable time delay (Range delay)延迟的RF信号上可加上调

3、制信息：Modulation may be applied to the delayed RF signal to emulate effects = 信号频率（多普勒）信号频率（多普勒） on signal frequency (Doppler),=极化（极化（RCS） polarization (RCS),=相位相位 & 幅度幅度 phase and amplitude (Clutter)DRFMs Synopsis Corporation Group all rights reserved 2012 - Presentation 4 - SimulatorsRadars (Rad

4、ar Targets Simulator)Missile Seekers (Close loop real time simulation)Satellite CommunicationsGPS (receiver tests in jamming environment)Cellular/PCS/Wireless CommunicationsElectronic Countermeasures SystemsIntelligence (receiver tests in jamming environment)Radars (Test and Evaluation, Training)ECM

5、 (jamming effectiveness)ECCM techniques (RGPO, VGPO, Inverse gain, etc)Missile Seekers (Test and Evaluation, Training)DRFM应用应用 Applications模拟器模拟器雷达（雷达目标模拟）雷达（雷达目标模拟）导弹导引头（闭环实时模拟）导弹导引头（闭环实时模拟）卫星通信卫星通信GPS (干扰环境下的接收机测试干扰环境下的接收机测试)蜂窝蜂窝/PCS/无线通信无线通信电子反对抗系统电子反对抗系统情报（干扰环境下的接收机测试情报（干扰环境下的接收机测试)雷达雷达 (Test an

6、d Evaluation, Training)ECM (jamming effectiveness)ECCM techniques (RGPO, VGPO, Inverse gain, etc)Missile Seekers (Test and Evaluation, Training) Synopsis Corporation Group all rights reserved 2012 - Presentation 5 - InstrumentationAutomatic Test EquipmentNuclear eventsHigh Energy PhysicsPulse power

7、sourceUltrasound : medical diagnosticsNon destructive testingLaser induced phenomenaDRFM Applications仪器使用仪器使用自动测试设备自动测试设备核事件核事件高能物理高能物理脉冲功率源脉冲功率源超声波：医疗诊断超声波：医疗诊断非破坏性检查非破坏性检查激光诱发现象激光诱发现象 Synopsis Corporation Group all rights reserved 2012 - Presentation 6 - DRFM System architectureRF Frontend for RF-

8、IF down conversionADC / DEMUXDigital MemoryDoppler modulatorMUX / DACRF Backend for IF-RF up conversion用于用于RF-IF下变频的下变频的RF前端前端ADC / DEMUXDigital MemoryDoppler modulatorMUX / DAC用于用于IF-RF上变频的上变频的RF后端后端 Synopsis Corporation Group all rights reserved 2012 - Presentation 7 - DRFM SpecificationsSample Ra

9、te2000 MHzData Sample Size1 - 10 bitsProgrammable Time Delay0 - 4ms/4nsTime Delay Resolution 8/2/1 nsSignal Latency200nsDoppler Shift 10 MHzDoppler Resolution1 HzDigital to Analog Conversion 1 - 12 bits 采样率采样率2000 MHz采样数据位宽采样数据位宽1 - 10 bits可编程时延可编程时延0 - 4ms/4ns时延分辨率时延分辨率8/2/1 ns信号等待时间信号等待时间200ns多普勒频

10、移多普勒频移 10 MHz多普勒分辨率多普勒分辨率1 Hz数模转换数模转换 宽度宽度 1 - 12 bits Synopsis Corporation Group all rights reserved 2012 - Presentation 8 - DRFM Range simulationDRFM距离模拟距离模拟XXDirect Digital Synthesizer for Doppler GeneratorA/DD/ALO frequencyLO frequency + DopplerDelay LineDelay generatorDigital Control InterfaceR

11、ange = DelayRF output Synopsis Corporation Group all rights reserved 2012 - Presentation 9 - DRFM Doppler simulationDRFM多普勒模拟多普勒模拟XXDirect Digital Synthesizer for Doppler GeneratorA/DD/ALO frequencyLO frequency + DopplerDelay LineDelay generatorDigital Control InterfaceBypass modeRF output Synopsis

12、Corporation Group all rights reserved 2012 - Presentation 10 - DRFM Clutter simulationDRFM杂波模拟杂波模拟I/QXXDirect Digital Synthesizer Doppler I/Q modulatorA/DD/ALO frequencyClutter:AltitudeMain lobeSide lobesDelay LineDelay generatorDigital Control InterfaceMemorized pulse is continuously looped up to r

13、adar horizonRF output Synopsis Corporation Group all rights reserved 2012 - Presentation 11 - IF 上上/下变频转换下变频转换DRFMReceiver AmplifiersS SEmitter AmplifiersS SAgile synthesizerLocal OscillatorNoise generationDoppler generationDRFM sub-systemIF Up/Down conversion Synopsis Corporation Group all rights r

14、eserved 2012 - Presentation 12 - 多路多路DRFM 模拟器模拟器RTS simulator can handle a multiple DRFM configuration for capability enhancementDRFMReceiver AmplifiersS SEmitter AmplifiersS SAgile synthesizerLocal OscillatorClutterHigh resolutionStandardStandardStandardNoise generationDoppler generationDRFMDRFMDRF

15、MDRFMMultiple DRFM simulator Synopsis Corporation Group all rights reserved 2012 - Presentation 13 - Radar Target Simulator 雷达目标模拟器（雷达目标模拟器（RTS） Synopsis Corporation Group all rights reserved 2012 - Presentation 14 - Based on DRFMRadar Target Simulator基于基于DRFM Synopsis Corporation Group all rights r

16、eserved 2012 - Presentation 15 - 入射雷达脉冲入射雷达脉冲飞机雷达回波飞机雷达回波Echo t shift allows target distance measurement f Doppler shift allows target velocity measurement tf + f1fA1 A2f + f2Radar Target Simulator principlesIncoming radar pulseAircraft radar echo t 允许目标距离测量的时间偏移允许目标距离测量的时间偏移 f 允许目标速度测量的多普勒频移允许目标速度测

17、量的多普勒频移 Synopsis Corporation Group all rights reserved 2012 - Presentation 16 - How to simulate one or several virtual targets to a real emitting radar ? Operation principle如何模拟一个真实发射雷达的一个或多个虚拟目标？如何模拟一个真实发射雷达的一个或多个虚拟目标？ Synopsis Corporation Group all rights reserved 2012 - Presentation 17 - How to s

18、imulate one or several virtual targets to a real emitting radar ? Listen, detect and record an incoming radar pulse 1Operation principle如何模拟一个真实发射雷达的一个或多个虚拟目标？如何模拟一个真实发射雷达的一个或多个虚拟目标？侦听、检测和记录入射雷达脉冲侦听、检测和记录入射雷达脉冲 Synopsis Corporation Group all rights reserved 2012 - Presentation 18 - How to simulate o

19、ne or several virtual targets to a real emitting radar ? Listen, detect and record an incoming radar pulse Process the recorded pulse to make it seem like a real target Velocity change : Doppler shift Distance change :Range shift Amplitude change (coherence to distance, power & RCS of target) 12

20、Operation principle如何模拟一个真实发射雷达的一个或多个虚拟目标？如何模拟一个真实发射雷达的一个或多个虚拟目标？侦听、检测和记录入射雷达脉冲侦听、检测和记录入射雷达脉冲 对记录的脉冲进行处理，使其近似一个真实目标对记录的脉冲进行处理，使其近似一个真实目标速度改变：多普勒频移速度改变：多普勒频移距离改变：距离偏移距离改变：距离偏移幅度改变幅度改变（与目标距离、功率（与目标距离、功率&RCS相参相参 ） Synopsis Corporation Group all rights reserved 2012 - Presentation 19 - How to simula

21、te one or several virtual targets to a real emitting radar ? Listen, detect and record an incoming radar pulse Process the recorded pulse to make it seem like a real target Velocity change : Doppler shift Distance change : range shift Amplitude change (coherence to distance, power & RCS of targe

22、t) Emit the new pulse to the radar receiver123Operation principle如何模拟一个真实发射雷达的一个如何模拟一个真实发射雷达的一个或多个虚拟目标？或多个虚拟目标？侦听、检测和记录入射雷达脉冲侦听、检测和记录入射雷达脉冲 对记录的脉冲进行处理，使其近似对记录的脉冲进行处理，使其近似一个真实目标一个真实目标速度改变：多普勒频移速度改变：多普勒频移距离改变：距离偏移距离改变：距离偏移幅度改变幅度改变（与目标距离、功率（与目标距离、功率&RCS相相参参 ）向雷达发射机发射新的脉冲向雷达发射机发射新的脉冲 Synopsis Corpor

23、ation Group all rights reserved 2012 - Presentation 20 - How to simulate one or several virtual targets to a real emitting radar ? Listen, detect and record an incoming radar pulse Process the recorded pulse to make it seem like a real target Velocity change : Doppler shift Distance change : range s

24、hift Amplitude change (coherence to distance, power & RCS of target) Emit the new pulse to the radar receiverThe system able to perform these operations is the123Operation principle如何模拟一个真实发射雷达的一个如何模拟一个真实发射雷达的一个或多个虚拟目标？或多个虚拟目标？侦听、检测和记录入射雷达脉冲侦听、检测和记录入射雷达脉冲 对记录的脉冲进行处理，使其近似对记录的脉冲进行处理，使其近似一个真实目标一个真实

25、目标速度改变：多普勒频移速度改变：多普勒频移距离改变：距离偏移距离改变：距离偏移幅度改变幅度改变（与目标距离、功率（与目标距离、功率&RCS相相参参 ）向雷达发射机发射新的脉冲向雷达发射机发射新的脉冲可以完成这些操作的系统称为可以完成这些操作的系统称为DRFM Synopsis Corporation Group all rights reserved 2012 - Presentation 21 - A DRFM is a system able to :Sample an high bandwidth input signalStore these samples into a w

26、ave memoryReplay the input signal upon requestDRFM is a PDDL module:Programmable= All operational parameters (record length .) can be tunedDigital = Using state of the art digital sampling and storage technologyDelay line = Basic feature is a delay line compared to analog systemsDRFM 定义定义DRFM 系统的功能系

27、统的功能:对大带宽的输入信号进行采样将采样的数据存入波形存储器根据需要回放输入信号DRFM是一个可编程数字延迟线（是一个可编程数字延迟线（PDDL）模块）模块:可编程可编程= 所有操作参数所有操作参数(记录长度记录长度 .) 可调可调数字数字=采用最先进的数字采样和存储技术采用最先进的数字采样和存储技术延迟时间延迟时间 = 与模拟系统相比，基本功能是一个延与模拟系统相比，基本功能是一个延迟线。迟线。DRFM Definition Synopsis Corporation Group all rights reserved 2012 - Presentation 22 - Digital RF

28、Memories are used in : Radar Target SimulatorsThe DRFM stores radar pulse and replay it when neededECM SimulatorThe DRFM can be pre-loaded with radar waveforms and ECM context (Radar, jammers, emitters .)The DRFM can play a jammer role with deception techniques implementation (RGPO,VGPO, .)DRFM 应用应用

29、DRFM ApplicationsDRFM 存储雷达脉冲，并按需回放ECM 模拟器模拟器DRFM能够预加载雷达波形和ECM环境（雷达、干扰、发射机）DRFM可以采用欺骗技术来实现干扰机的功能 (RGPO,VGPO, .) Synopsis Corporation Group all rights reserved 2012 - Presentation 23 - Step 1: The control interface asks for pulse recording with a write pulseStep 2: The down converted radar pulse is fe

30、d to the input stage of the DRFMStep 3: The radar pulse is recorded in the DRFM digital memoryStep 4: The control interface asks for pulse re-emission with a read pulseStep 5: the delayed radar pulse is transmitted to the DRFMs output stageDRFM 工作原理工作原理DRFM theory of operation第一步：控制接口发写脉冲请求，用于脉冲记录第二

31、步：雷达下变频脉冲输入到DRFM的输入级第三步：雷达脉冲存储于DRFM的数字存储器中第四步：控制接口发读脉冲请求，用于脉冲重发第五步：延迟的雷达脉冲传输至DRFM的输出级 Synopsis Corporation Group all rights reserved 2012 - Presentation 24 - DRFM writeRF inputDRFM readRF outputIncoming radar pulseOutput radar pulset_DRFM_writet_radart_write_latencyt_DRFM_latencyt_DRFM_readt_read_la

32、tencyt_read_stopt_DRFM_write duration should exceed t_radar to achieve optimal operation.DRFM 时间举例时间举例DRFM timing examplest_DRFM_write持续时间应该超过持续时间应该超过 t_radar 以获得优化的操作以获得优化的操作 Synopsis Corporation Group all rights reserved 2012 - Presentation 25 - Multiple DRFM systems are able to manage different c

33、onfigurations :- Extended number of interleaved targets- Clutter and multipath simulation with DRFMs- Different DRFM types for different targets definitionThe whole system can be reconfigured at Hard/Soft levels 为何要使用多路为何要使用多路DRFM 模拟器模拟器Why using a Multiple DRFM simulator多路多路DRFM 系统能够管理不同配置系统能够管理不同配

34、置：-交叉目标的数据可扩展-利用DRFM进行杂波和多径模拟 -利用不同的DRFM类型可定义不同的目标类型整个系统可以在硬件整个系统可以在硬件/软件级别进行软件级别进行重新配置重新配置 Synopsis Corporation Group all rights reserved 2012 - Presentation 26 - RTS Computer 接口接口DSPFPGADSPDSPDSPPCcPCIGbitSwitchPCI BusGbit Ethernet networkIndustrialPCReflective MemoryGbitSwitchReflective MemoriesN

35、etworkcPCIPCIRIG BPCI BusIndustrialPCReflective MemoryInterfaces:PCI2 x Gbit Ethernet4 x USB2Reflective MemoriesInterfaces:cPCI2 x Gbit Ethernet2 x USB2Reflective MemoriesIRIG B (option)RTS Computer Interfaces Synopsis Corporation Group all rights reserved 2012 - Presentation 27 - DSPFPGADSPDSPDSPPC

36、cPCIGbitSwitchPCI BusGbit Ethernet networkRTS Computer Interfaces IndustrialPCReflective MemoryGbitSwitchcPCIPCIRIG BPCI BusIndustrialPCReflective MemoryRTS Computer 接口接口 Synopsis Corporation Group all rights reserved 2012 - Presentation 28 - DSPFPGADSPDSPDSPPCcPCIShared Memory GbitSwitchPCI BusGiga

37、 bit Ethernet networkRTS 数据记录和数据分析数据记录和数据分析Shared MemoryGbitSwitchShared MemoriesNetworkRTSData RecorderMasterIRIG BPCI BusData AnalysisIndustrialPCRTS Data recorder and Data Analysis Synopsis Corporation Group all rights reserved 2012 - Presentation 29 - 外部实时控制DSPFPGADSPDSPDSPPCcPCIGbitSwitchPCI Bu

38、sGbit Ethernet networkIndustrialPCReflective MemoryGbitSwitchReflective Memories NetworkcPCIPCIRIG BPCI BusIndustrialPCReflective MemoryReflective MemoryCustomerPCExternal Real time control Synopsis Corporation Group all rights reserved 2012 - Presentation 30 - 简化的一次上变频简化的一次上变频I/QS/1Az/2El/3DRFM out

39、Amplitude data inBPFDDSDAC QDAC IPLOBPFBPFBPFABFUDoppler (32-bit) & Phase variation (14-bit)Amplitude variation(14-bit)CC3515CV2406Simplified first up-converterRange DelaySimplified first Up-converter Synopsis Corporation Group all rights reserved 2012 - Presentation 31 - Simplified first Up-con

40、verterI/QSAzElDRFM outAmplitude data inBPFDDSDAC QDAC IPLOBPFBPFBPFABFUDoppler (32-bit) & Phase variation (14-bit)Amplitude variation(14-bit)CC3515CV2406Simplified first up-converterRange Delay简化的一次上变频简化的一次上变频 Synopsis Corporation Group all rights reserved 2012 - Presentation 32 - I/QSI/QI/QI/QD

41、AC QDAC IRF inData inBPFDAC QDAC IDAC QDAC IDAC QDAC I30dB30dB30dB30dBFPGAIDTrigger RF1 out RF2 out RF3 out RF4 outDAC Clock125MHzABFU / RFABFU / DACABFUFPGA天线波束形成单元天线波束形成单元(ABFU)Antenna Beam Forming Unit (ABFU) Synopsis Corporation Group all rights reserved 2012 - Presentation 33 - Vector modulator

42、sICRM8722/ADOA/PDOAFPGADACI&QQDACI&QDACI&QDACI&QIQIQIQChannel1Channel2Channel3Channel4External controlRocket I/OTrigger, ID,ClockExternal controlTrigger , ID125MHzABFU 控制器控制器ABFU controller Synopsis Corporation Group all rights reserved 2012 - Presentation 34 - Vector modulatorsUp-co

43、nverterIDSPMEMORYCC3508 / ABFURef/clock/synchronization/trigger/PLO/distributionExt. 5/10MHzFPGADACI&QCRM8710PCI BusDSPDSPDSPDSPFPGAMEMORYMEMORYPCIRIG BReflectiveMemoryCRA8700CC9207QDACI&QDACI&QDACI&QIQIQIQUp-converterUp-converterUp-converterSAzElG1/S2/Az3/El4/G四通道ABFU 数字模块框图Four cha

44、nnels ABFU Digital block diagram Synopsis Corporation Group all rights reserved 2012 - Presentation 35 - Vector modulatorsUp-converterICC3508/ADOA/PDOARef/clock/synchronization/trigger/PLO/distributionFPGADACI&QCRM8710DSPDSPDSPDSPFPGAMEMORYMEMORYPCIRIG BReflectiveMemoryCRA8700CC9207QDACI&QDA

45、CI&QDACI&QIQIQIQUp-converterUp-converterUp-converterChannel1Channel2Channel3Channel4 RF1 RF2 RF3 RF4 CRM87XXIDSPMEMORYCC3515 FPGADDSI&QQDDSI&QDACI&QDACI&QIQIQIQPCI / IRIG network / Gbit EthernetReflective memory network四通道ADOA & PDOA 数字模块框图Four channels ADOA & PDOA Di

46、gital block diagram Synopsis Corporation Group all rights reserved 2012 - Presentation 36 - Vector modulatorsUp-converterICC3508/ABFU Ref/clock/synchronization/trigger/PLO/distributionFPGADACI&QCRM8710DSPDSPDSPDSPFPGAMEMORYMEMORYPCIRIG BReflectiveMemoryCRA8700CC9207QDACI&QDACI&QDACI&QIQIQIQUp-converterUp-converterUp-converterChannel1Channel2Channel3Channel4CRM87XXIDSPMEMORYCC3515 FPGADD