用于步进频连续波雷达旁瓣抑制的自适应CLEAN技术  

A Sidelobes Suppression Algorithm Based on CLEAN Technology for Stepped Frequency Continuous Waveform Radar

作　　者：帅晓飞[1] 詹旭[2] 

机构地区：[1]中国兵器装备集团(成都)火控技术中心,成都611731 [2]四川理工学院自动化与电子信息学院,四川自贡643000

出　　处：《电讯技术》2015年第2期163-167,共5页Telecommunication Engineering

基　　金：国家自然科学基金资助项目(61178068);四川省教育厅项目(14ZB0223)~~

摘　　要：为了解决步进频连续波雷达中的强目标距离旁瓣掩盖弱小目标问题,对步进频自适应脉压算法(SFCW-RMSMIL)进行修正,并联合修正SFCW-RMSMIL算法和CLEAN技术,提出了一种新的自适应CLEAN算法(A-CLEAN)。该算法解决了弱小目标能量严重压制问题,同时还能精确估计各目标的幅度和位置,提高了雷达对弱小目标的检测能力。最后利用仿真数据、实测数据以及蒙特卡洛实验验证了新提出的A-CLEAN算法的有效性和实用性。This paper addresses the masking problem of small target by large nearby target for the steppedfrequency continuous waveform（SFCW） radar. Firstly,the traditional adaptive pulse compression based onthe reiterative maximum signal minus interference level（SFCW-RMSMIL） is modified. Then a novel adaptiveCLEAN（A-CLEAN） algorithm is proposed by combining the modified SFCW-RMSMIL method with theCLEAN technology for sidelobe reduction to improve the detection ability. The new algorithm succeeds indealing with the problem that the power of weak target is seriously suppressed,and estimates the amplitudeand location of weak target accurately. Finally,several numerical results using simulated data,real data andMonte Carlo experiment are provided to prove the effectiveness and practicability of the proposed algorithm.

关 键 词：步进频连续波雷达 旁瓣抑制 自适应CLEAN 弱小目标检测 

分 类 号：TN958.6[电子电信—信号与信息处理]