PD雷达抗距离-速度同步拖引干扰的频谱识别法

Frequency domain technique of PD radar to counter synchronous jamming on range and velocity

分析了存在距离-速度同步拖引干扰时的信号频谱特征,研究了一种脉冲多普勒(PD)雷达抗距离-速度同步拖引干扰的方法。该方法在高速可编程DSP芯片所构成的距离-速度跟踪系统中,通过对接收机AGC电压和对信号的频谱分析,实现对距离-速度同步欺骗干扰的辨别和对抗。

The spectrum characteristics of synchronous jamming on range and velocity are analyzed. A method for a PD radar to counter the jamming is also discussed. Based on the measurement of the AGC voltage and the analysis of the spectrum of input signals, judgement and countermeasure against synchronous jamming.on range and velocity are realized in a range-velocity tracking system constructed by high speed, programmable DSP chips.