用去卷积方法测量和差通道延时补偿量

Measurement of time delay compensation for monopulse sum and difference channels by using deconvolution

宽带单脉冲三维成像雷达具有很高的距离分辨率,差信号经过相对于和信号的归一化处理后就能提供目标方位、俯仰信息;但和差通道微小延迟差可能对角度测量造成较大影响。介绍了宽带脉冲三维成像雷达原理和用去卷积测量和差通道延迟补偿量的方法,分析了和差通道延迟不同对角误差测量结果的影响,并用去卷积方法测量了仿真数据的和差通道延时补偿量。由分析可知,去卷积方法测量和差通道延迟补偿量不仅计算量小,并具有很高的测量精度。

Wide-band mono-pulse imaging radar has a high range resolving power, and can supply targers＇ 3-D position with an echo. But little time delay difference of sum and difference channels may make a great error in angle measurement. There is a contracted introduction of the principle of wideband mono-pulse radar and the method of deconvolution in measuring the difference of time delay in mono--pulse sum and difference channels. The authors also simulated the effect of difference of time delay in two channels in measuring the range profile of target and measured the difference of time delay of stimulant data with deconvolution. The method used not only requires less computation but also is effective.