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测距测速是雷达的基本应用之一。文章设计了基于DSP芯片TMS320VC5402的数字信号处理机,对汽车防撞雷达系统接收到的回波信号进行了实时采样和分析并实时计算出目标的距离和速度。实验表明,该信号处理机工作稳定可靠,满足了汽车防撞雷达系统对信号处理的实时性要求。
Ranging speed measurement is one of the basic applications of radar. The paper designs a digital signal processor based on DSP chip TMS320VC5402, real-time sampling and analyzing the echo signal received by automotive crash radar system and calculating the target’s distance and speed in real time. Experiments show that the signal processor work is stable and reliable, to meet the real-time requirements of the signal processing of the automotive crash radar system.