基于复像分析的雷达目标弱信号检测

The detection of weak signal from radar target based on complex-image analysis

论述了在强噪声下利用复像分析 (Complex ImageAnalysis)检测雷达目标弱信号的方法 ,通过这种方法 ,可以提高雷达在强噪声下对目标的检测能力 ,使得利用阈值检测无法检测到的目标经过复像分析的处理之后 ,可以被正确地检测出来。利用复像分析的检测是一种识别检测 ,即在目标被检测到的同时 ,一些目标的基本特性也可以由复像分析的结果得到。

A new method based on Complex-Image Analysis (CIA) for the detection of weak signal of radar target is described in this paper. This approach makes use of both the amplitude and the phase information of two-dimensional radar image to improve the ability of detecting weak signal under the strong noise background. The essenle of this method is to detect the radar target through the analysis of the target characteristics. Therefore this is identification based detection approach. The advantages of this approach are not only to improve the ability of detection but also to have the ability of target identification simultaneously.