改进型雷达二维恒虚警检测参考窗

Improved two-dimensional radar constant false alarm detection reference window

自适应雷达目标检测器是雷达接收机中非常重要的装置,目标检测的目的是在恒定的虚警概率的约束下,最大化提升目标的检测效率。针对传统的二维恒虚警矩形参考窗参考单元较多、计算量大,在多目标环境下检测效率低的问题,在二维矩形窗的基础上,设计了一种新的田字型二维参考窗,剔除了矩形窗中部分与目标检测判决无关的参考单元,实验结果证明:检测效率高于传统二维矩形窗。

Adaptive radar target detector is a very important device in radar receiver.The objective of target detection is to maximize the target detection efficiency under the constraints of constant false alarm rate(CFAR).Aiming at the problem that traditional two-dimension CFAR rectangular reference window has many reference units,large calculation amount and low detection efficiency in multi-targets environments,a new 2D'田'type reference window based on two-dimension rectangular reference window is designed,which eliminates some reference units of rectangular window that are not related to target detection decision.Experimental result proves that the detection efficiency is higher than the traditional 2D rectangular window.