线性调频脉冲压缩技术及其在雷达系统中的应用

Study on the Technology of LFM Pulse Compression and Appliances in Radar System

对目前在雷达信号处理系统中应用较为广泛的脉冲压缩技术进行了介绍,主要是线性调频的脉冲压缩信号。首先对脉冲压缩和线性调频脉冲信号进行了介绍,然后研究了线性调频信号的压缩过程及其压缩方法。由于在压缩过程中,会在窄脉冲两侧不可避免地产生以辛格函数为包络的旁瓣,旁瓣的存在会大大降低多目标分辨能力,故最后介绍了用于旁瓣抑制的加权处理方法。

This paper introduces the technology of pulse- compression,especially,the LFM pulse- compression. After the introduction of the pulse compression and the LFM,the paper studies the procession of the LFM pulse compression and the methods of it. In the end, the methods of weighted processing are introduced, because sideband whose envelope is Sinc function could appear during the compression and the existence of sideband could depress the detection of multiple targets.