基于DSP+FPGA的信号处理实验系统研制

本文利用DSP＋FPGA技术,研制了一种信号处理实验系统,实现了滤波、MTI、求模、恒虚警等各种信号处理算法,对算法的实时性、效果进行了验证和分析,可对各种算法的工程应用价值进行客观评估,已作为实验室专用设备用于雷达、水声信号处理有关算法的验证和分析。该系统由DSP、FPGA、双路高速A/D和D/A等构成,可对串行、并行输入的信号进行处理,处理后的信号可以以串行、并行方式输出。本文对系统的硬件、软件结构和有关实验结果进行了介绍。

Development of signal processing system based on DSP and FPGA

A signal processing experimental system has been developed using DSP and FPGA to realize various signal processing algorithms, such as filtering, MTI, module calculation, CFAR and so on. The real-time characteristics and effects of the system are validated and analyzed. This system can objectively evaluate engineering value of various algorithms, and has become special equipment for validation and analysis of algorithms in radar and acoustic signal processing. This system is comprised of DSP, FPGA, dual channel high-speed A/D and D/A, and can process serial and parallel input signals; and the processed signals can be output in serial and parallel modes. System hardware, software architectures and experimental results are introduced in this paper.