摘要
介绍了多普勒雷达测速原理和用DSP芯片TMS320VC5402的汇编程序实现FFT算法方案,在DSP芯片中对被检测车辆运动产生的多普勒频率进行频谱分析。针对交通雷达测速系统的原理及测试方法进行了深入分析,并提出了有效改善其性能的方法。对提高国产交通雷达测速系统的精度与可靠性并使其向多功能测试系统发展具有重要的现实意义。
This paper introduces the principle of Doppler radar speed gun and FFT algorithm achieved by using DSP chip TMS320VC5402. Spectrum analysis on Doppler frequency caused by vehicles radar movement is carried out in DSP chip. In this paper principle and test method of the traffic radar speed gun are carried on the thorough analysis, and the method of improving its performance is proposed.It is important to increases the precision and the reliability of domestically produced traffic radar speed gun and enable it to have the vital practical significance to the multi-purpose reflectoscope reflector development.
出处
《电子技术应用》
北大核心
2009年第4期141-142,145,共3页
Application of Electronic Technique
