基于复合体制和Kalman滤波的交通测速雷达设计

The design of the traffic speed measuring radar based on composite system and Kalman filter

在深入研究各雷达体制基本原理及信号处理方法的基础上,根据实际交通管理需求现状,指出两种体制复合工作的必要性,分别对雷达系统硬件电路和DSP算法做出改进。通过MATLAB分析数据以及实际路测,能够准确得到目标机动车的速度和距离信息,车辆有效抓拍率高达99%以上,并有很好的抓拍一致性。该研究成果可对交通管理部门的监管工作提供便利,有效提高执法可靠性,具有重要的现实意义。

After a further study of the basic working principle and signal processing methods of the radar system,this paper points out the necessity to combine two kinds of systems according to the actual requirements of traffic management,and makes improvements on the hardware and the DSP algorithm of radar system. By data analysis in MATLAB and the actual road test,it is possible to accurately obtain the speed and distance information of target vehicle with an effective capture rate of over 99% and a good capture consistency. The research achievements provide great convenience for the supervision work of the traffic administrative department,improve the reliability of law enforcement,and have important practical significance.