【摘要】 介绍了DSP芯片TMS320VC5402的特性和在交通执法机构使用的测速雷达中的应用。利用雷达检测车辆运动产生的多普勒频率,在DSP芯片中利用现代谱估计的算法进行频谱分析得到多普勒频移。整个装置体积小、质量轻,可实现便携式测量。速度测量结果准确可靠。给出了系统的结构框图及DSP程序流程图。更多还原

【Abstract】 The characters of TMS320VC5402 and its application in speed measurement radar for lawenforcement in communication are introduced.Doppler frequency generated through moving vehicles is detected by radar.In DSP chip frequency spectrum is analyzed by spectrum estimation algorithm to achieve Doppler frequency shift.It has characteristics of small size,light weight,portable measurement.Its measuring result is precise and reliable.System chart and program flow chart are presented.更多还原