高精度相控阵预警雷达信号建模与干扰方法研究

Research into Modeling and Jamming Methods of High Precision Phased Array Early Warning Radar Signal

分析了高精度相控阵预警雷达在时域、频域、空域、能量域和样式域上的特点,结合相控阵雷达特性建立了雷达辐射源信号模型,并考虑到雷达目标反射截面积的起伏和环境因素的影响建立了目标回波模型和环境杂波模型,提出了对该种雷达的混合干扰方法,综合采用压制和欺骗干扰方式,噪声卷积、脉冲卷积和射频噪声干扰信号样式,并使干扰机数量满足方位饱和干扰的条件以提高对该种雷达的干扰效果。最后对干扰效果进行仿真评估,其结果有助于对高精度相控阵预警雷达的研究和干扰手段创新。

This paper analyzes the characteristics of high precision phased array early warning radar in time domain,frequency domain,spatial domain,energy and style field,sets up the signal model of radar emitter combing with the characteristics of phased array radar,^^tablishes the target echo model and environment clutter model considering the influence of reflecting cross section fluctuation of radar target and environmental factors,presents the mixed jamming methods to this kind of radar,uses suppression and deception jamming modes,noise convolution,pulse convolution and radio frequency(RF)noise jamming signal styles,and makes the jammer numbers satisfy the conditions of direction saturated jamming to improve the jamming effect to this radar.Finally,the jamming effect is simulated and evaluated,and the results are helpful for the study of high precision phased array early warning radar and the innovation of jamming means.