摘要
研究一种基于DSP芯片TMS320F240处理器的雷达车辆检测器.该检测器在简单的连续波上加上尖锐的定时标志,克服了连续波雷达不能测距的弱点,采用三角波调制的线性调频连续波雷达实现测距.通过在DSP中预存与各车道相应的FIR系数实现对车辆的检测,便于实时处理.选用带有外围接口如ADC,SCI(串行通信接口)的TMS320F240处理器,增加系统的集成度,减小干扰.实际运行证明,该车辆检测器对运动车辆的速度和流量的检测精度高达95%,适用于智能化的交通系统.
The design of a radar vehicle detector based on TMS320F240 is introduced. The vehicle detector makes use of LFMCW radar's range-measuring principle in detecting vehicles. To improve the ability of real-time processing, FIR numbers are used in the data processing and stored in the digital signal processor. TMS320F240 is chosen as the main signal processor as a low cost high integration degree DSP. The experiments have proved that the precision of detection in velocity and amount is up to 95%.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2004年第8期727-730,共4页
Transactions of Beijing Institute of Technology
基金
国家部委预研项目(2002AA823032)
