摘要
基于低空监视雷达在复杂背景环境中的回波特性,归纳了3种典型的雷达回波背景环境:高斯杂波背景、多目标背景以及非高斯杂波背景,通过分析这3种杂波背景中的最优恒虚警方案,并针对有序统计类恒虚警提出了一种实时排序算法,最后根据上述方案和算法,设计了一种参数化的通用恒虚警率检测器,使之能根据雷达所处的环境进行重构,对该通用恒虚警检测器的测试证明该IP-Core能够明显地改善雷达系统的环境适应性和检测性能。
Based on the echo characteristic of low-altitude surveillance radar in complex background, this paper sums up three typical background conditions of which are Gaussian clutter background, multiple targets background and non-Gaussian clutter back- ground.This paper analyzes an optimal CFAR （Constant False Alarm Rate） scheme in these three background conditions,and presents a real-time ordering algorithm to OS-CFAR （Order Statistics-Constant False Alarm Rate） ,and according to which a general parameter- ized CFAR detector is designed to achieve reconstitution in line with the radars＇ condition.The experiment results prove that this IP-Core can significantly improve the environmental suitability and detecting performance of the radar system.
出处
《无线电通信技术》
2015年第2期59-63,共5页
Radio Communications Technology
基金
国家国际科技合作专项资助项目(2012DFB10200)
