对线性调频脉冲压缩雷达的干扰研究与仿真分析

线性调频脉冲压缩雷达是一种抗干扰能力很强的雷达,这主要是因为脉冲压缩网络对噪声和常见的干扰信号具有很强的抑制作用。本文分析了线性调频脉冲压缩雷达的工作原理、移频干扰原理和卷积干扰原理。移频干扰是一种欺骗干扰,既可产生超前也可产生滞后的假目标;卷积干扰不仅能实现欺骗干扰,还可以实现压制干扰,且只需要较小的干扰功率。结合移频干扰和卷积干扰,能够取得更好的干扰效果。通过仿真,证明了移频干扰和卷积干扰的高效性和实用性。

A study and simulation analysis of the jamming on LFM pulse-compression radars

The LFM pulse-compression radar has strong anti-jamming ability.This is mainly because the pulse-compression network strongly suppresses noises and common jamming signals.In this paper the working principle of the LFM pulse compression radar,and the principles of shift frequency jamming and convolution jamming are analyzed.The shift frequency jamming is a kind of deception jamming capable of giving both leading and lagging false targets.The convolution jamming is not only a deception jamming but also a blanket jamming,and needs merely small power.Combining these two kinds of jamming may get better effect.The high efficiency and practicability of the two kinds of jamming are proved through simulation.