低频超宽带雷达对隐身目标的探测性能分析

Analysis of Low Frequency Ultra Wideband Radar on the Detection Performance of the Stealth Target

基于低频超宽带雷达信号,通过对时域分离回波信号的叠加处理等效增大隐身飞机的RCS,通过信号相参积累改善信噪比,实现对隐身目标的远距离探测和稳定跟踪。对比分析了低频超宽带雷达和常规低频雷达对隐身飞机的探测性能,低频超宽带雷达照射下,通过散射中心叠加后目标全程处于探测范围,通过信号相参处理后对飞机的检测概率高达0.9,对目标的探测能力远远大于常规雷达,有利于防空武器对隐身目标的及早发现和拦截。

Based on the low frequency ultra wideband radar signal, this paper equivalently increased the RCS of stealth aircraft through the temporal separation of fall of echo signal processing, and improved the signal-to-noise ratio through signal coherent accumulation, achieved the goal of stealth target detection and track over a long distance. The comparision analysis of the ability for detecting stealth aircraft with low frequency ultra wideband radar and the conventional low frequency radar is analyzed, when the low frequency ultra wideband radar is working, with superposition of scattering centers, the target is in the detection range all the way. After the coherent signal preocessing on the plane, the detection probability is up to 0.9, the target detection ability is stronger than the conventional radar, also it is advantageous to detect and intercept stealth target for the air defense weapon early.