脉冲雷达测速方法的改进研究

Improvement of Pulse Radar Velocity Detection Method

雷达测速是通过对目标回波信号的多普勒频率测量来实现的,在大加速度情况下目标回波谱线会出现发散问题,对测速精度造成影响。针对这一情况,提出了一种利用加速度平台进行加速度补偿的方法,在原有的测速回路基础上增加加速度补偿模块,建立了加速度识别和补偿机制,实现测速精度的提高。文中使用MATLAB对所建平台进行建模仿真,仿真结果表明:该算法可以明显提高大加速度下的脉冲多普勒测速精度,且具有较好的实用性和有效性。

Radar velocity detection is realized by measuring the Doppler frequency of target echo signal. In the case of large acceleration,the divergence of target echo spectrum occurs,which affects the accuracy of velocity detection. In this paper,a novel method of acceleration compensation is proposed. An acceleration compensation module is added to the original velocity detection circuit to improve the accuracy of velocity measurement. The simulation shows that the algorithm improves the accuracy of pulse Doppler velocity measurement.