基于双距离像的雷达目标识别技术

Techniques for Radar Target Recognition Based on Birange Profile

复杂目标的雷达接收回波可视为多个散射中心及其多个散射中心相互作用产生的信号合成，对回波进行双谱估计获得的目标双距离像能有效地区分这两类信号，且能抑制杂波及干扰，基于这一原理，本文对实测雷达回波进行双谱估计得到目标的双距离像，并对其进行二维梅林变换作为目标的特征量来完成目标识别。实验结果表明，这种方法的效果很好。

Radar received echoes of complex target are composed of signals caused by both multiple scattering and multiple scattering centers interactions ,and birange profile derived from e-choes bispectral estimates can identify these two kinds of signals and suppress clutter and noise.Based on this principle ,the paper uses two-dimension Mellin transform of birange profile derived from real-time data bispectral estimate as target feature for target recogniton. Experimental results show that the Method in this paper is very efficient.