Research On Passive Radar Signal Processing Platform Based On FPGA And GPU

Passive radar conducts target detection and tracking through a variety of signalssuch as FM broadcasting, terrestrial digital television signal, the communication signal,the satellite signal and so on which was reflected by target rather than emission signalsitself. Because of the characteristics of Anti-stealth, anti-reconnaissance,anti-interference and strong survivability, passive radar has become an importantresearch direction of the modern radar. However, passive radar has a high demand of thecomputing performance of the signal processing equipment which has become animportant factor that constraints the application of passive radar, so putting researcheson the signal processing equipment has an important practical significance.FPGA and DSP play an important role in the routine application, while GPU whichhas the superior parallel computing capacity resulting an unmatched performance ofDSP in Distance-Doppler matched filter, DOA estimation and Particle Filter basedtarget tracking algorithms is still in the preliminary stage of exploration has an initialeffect in the domain of radar signal processing. Relative research and achievement arecarried out based on the FPGA-GPU signal processing platform of Passive Radar,including following main work content:(1) A simple analysis of passive radar signal processing which provide atheoretical basis for the subsequent signal processing platform(2) Analysis of GPU hardware architecture, CUDA software architecture andprogramming model and achieve the Distance-Doppler matched filter, DOA estimationand Particle Filter based target tracking algorithms throughout GPU with performanceanalysis respectively, we also demonstrated the advantages of passive radar signalprocessing via GPU implementation.(3) Put forward an architecture based on FPGA and GPU to achieve passive radarthrough the analysis of sorts of architectures such as DSP, FPGA, DSP-FPGA andCPU-GPU. In addition, we also determined the system solution which based on thePCI-Express High-Speed Backplane through demonstrating the solution of FPGA-GPUbased architecture. (4) PCI-Express based backplane designing and primary achievement wascomplete.