本文介绍一种脉冲多普勒雷达技术,这种技术使雷达在一帧内波束照射到目标期间解决了距离和速度的模糊问题。采用的方法就是快速变化脉冲重复率,而不致于由于杂波造成频谱扩散到不可接受的程度。介绍一种改进的滤波器和积累方法,对信号进行处理而不引入损耗,而且解决了距离和速度的模糊问题。 This article describes a pulsed Doppler radar technique that allows the radar to resolve ambiguities in distance and velocity during an intra-beam exposure to a target. The method used is to rapidly change the pulse repetition rate without spreading spectrum to an unacceptable level due to clutter. An improved filter and accumulation method is introduced to process the signal without loss and to solve the ambiguity of distance and velocity.