引言机载脉冲多卜勒雷达提供了发现低空飞行目标的一种手段。这种低飞目标常常为相同距离上的地杂波所掩盖,一般雷达是不能发现的。脉冲多卜勒雷达技术是依据多卜勒效应或减小杂波的方法改善了信号杂波比,从而把飞机从杂波中分离出来。本文讨论脉冲多卜勒雷达采用多重脉冲重复频率来确定目标距离的问题。 脈冲多卜勃波形和杂波机载雷达的杂波包括几个基本区域,如图1所示。当天线主波束打地时,接收到的 INTRODUCTION Airborne pulsed Doppler radar provides a means of finding low-altitude flight targets. Such low-flying targets are often overshadowed by ground clutter over the same distance, which the general radar can not detect. Pulse Doppler radar technology is based on the Doppler effect or reduce the clutter method to improve the signal to noise ratio, thus the aircraft separated from the clutter. This article discusses the problem of using pulsed Doppler radar to determine the target distance using multiple pulse repetition frequencies. Pulsed Doppler Waveform and Clutter Airborne radar clutter consists of several basic areas, as shown in Figure 1. Received when the main beam of the antenna is hit