宽带雷达目标检测中的杂波抑制处理

Clutter Suppression Processing for Wideband Radar Target Detection

针对宽带雷达目标检测中的杂波干扰问题,提出基于FRFT(分数阶傅里叶变换)的多周期回波能量相干积累处理、基于Relax算法的多散射中心子回波分离的宽带雷达目标回波处理方法,既实现宽带雷达。目标检测中的能量相干积累,又有效抑制了环境杂波。仿真结果表明,提出的处理方法能够显著提升宽带雷达输出信杂比。

To solve the clutter interference in wideband radar target detection, a novel method based on fractional Fourier transform （FRFT） and Relax algorithm is proposed, and it coherently integrates multiple pulses and extracts target scattering centers＇ signals in wideband radar target detection. According to this method, target multiple pulses energy is accumulated while clutter is suppressed efficaciously. The simulation results indicate that the method can improves wideband radar output SCR （ signal to clutter ratio） evidently.