Missile-borne Radar Pulse Compression Signal Processing System Design Based On Multi-core DSP

To adapt the more and more complex operational environment of air-to-air missile,facing new style of disturbing signals like Towed Radar Active Decoy,gound reflect disturbing,and composite disturbing,the radar system is required to have high range resolution and multi-target recognition.And to satisfy user's require of simplifying logistics,the ability of multitasking that can deal with air target and gound target is also required.This thesis studies the development and application of missile-borne signal processing system,gives a brief introduction of the working principle,algorithm flow and composition of missile-borne pulse compression radar system.According to the feature of universal and multitasking that superordinate system requires,we proposed a high-performance universal type multitasking missile-borne pulse compression signal processing system using multi-core DSP.The VPX bus that is suitable for cruel environment has been choosed to become system bus.A universal type of signal processing board with a replaceable module has been designed.This board can reload processing program for difference job,and its replaceable module can be changed to other type processing module or Analog-to-Digital module to fit the request.The high-performance multi-core DSP made by TI company has been chosen to be the main processor,and a domestic high sample frequency multi-channel DDS is designed to generate radar signal.Besides,the system bus architecture,the hardware schematics,the FPGA program are also designed and tested.On this hardware platform,the software based on multi-core DSP is programmed and tested.The system is also tested by using a radar echo signal simulator in the laboratory.Finally,the usable of the system has been verified by the test of the whole radar system in external field.