雷达噪声干扰建模及其仿真分析

Modeling and Simulation Analysis of Noise Jamming of Radar

噪声干扰是一种通用的干扰措施,是最重要的干扰样式之一。介绍了调幅、调频、调相干扰样式,基于m序列的伪随机码代替白噪声产生方法,作Box-Muller变换,将随机数变为服从高斯分布的随机数,通过滤波器与功率控制器得到不同带宽的噪声干扰。通过建模仿真,验证了该方法产生的干扰样式具有良好的干扰效果。

Noise jamming is a common jamming measure, also is one of the most important jamming ways. The jamming ways of amplitude modulation （AM）, frequency modulation （FM） and phase modulation （PM） are studied. A way that producing white noise based on m-sequence is introduced. The random sequence which is turn into gauss noise by the change of box-muller processed by FIR filter and power controller. Finally, simulation and experiment results have proved the validity of this method.