A flexible field programmable gate array based radar signal processor is presented. The radar signal processor mainly consists of five functional modules： radar system timer, binary phase coded pulse compression（PC...A flexible field programmable gate array based radar signal processor is presented. The radar signal processor mainly consists of five functional modules： radar system timer, binary phase coded pulse compression（PC）, moving target detection （MTD）, constant false alarm rate （CFAR） and target dots processing. Preliminary target dots information is obtained in PC, MTD, and CFAR modules and Nios I! CPU is used for target dots combination and false sidelobe target removing. Sys- tem on programmable chip （SOPC） technique is adopted in the system in which SDRAM is used to cache data. Finally, a FPGA-based binary phase coded radar signal processor is realized and simula- tion result is given.展开更多
调频连续波(FMCW)雷达不易受云、雨、雾等天气因素的影响,可全天候工作,特别适合于港口起重机防撞系统等需要在恶劣的环境中进行短距离、高精度的测距。以8 mm FMCW雷达为研究对象,在深入研究了雷达输出中频信号特性的基础上,设计出了...调频连续波(FMCW)雷达不易受云、雨、雾等天气因素的影响,可全天候工作,特别适合于港口起重机防撞系统等需要在恶劣的环境中进行短距离、高精度的测距。以8 mm FMCW雷达为研究对象,在深入研究了雷达输出中频信号特性的基础上,设计出了以数字信号处理器(DSP)为核心的信号处理电路,该电路通过完成对雷达中频信号的滤波、放大和快速傅立叶变换(FFT)分析,可以进行准确的测距。展开更多
基金Supported by the Ministerial Level Advanced Research Foundation (SP240012)
文摘A flexible field programmable gate array based radar signal processor is presented. The radar signal processor mainly consists of five functional modules： radar system timer, binary phase coded pulse compression（PC）, moving target detection （MTD）, constant false alarm rate （CFAR） and target dots processing. Preliminary target dots information is obtained in PC, MTD, and CFAR modules and Nios I! CPU is used for target dots combination and false sidelobe target removing. Sys- tem on programmable chip （SOPC） technique is adopted in the system in which SDRAM is used to cache data. Finally, a FPGA-based binary phase coded radar signal processor is realized and simula- tion result is given.
文摘调频连续波(FMCW)雷达不易受云、雨、雾等天气因素的影响,可全天候工作,特别适合于港口起重机防撞系统等需要在恶劣的环境中进行短距离、高精度的测距。以8 mm FMCW雷达为研究对象,在深入研究了雷达输出中频信号特性的基础上,设计出了以数字信号处理器(DSP)为核心的信号处理电路,该电路通过完成对雷达中频信号的滤波、放大和快速傅立叶变换(FFT)分析,可以进行准确的测距。
