一种噪声雷达地杂波消除算法  

A Ground Clutter Cancellation Algorithm for Noise Radar

作　　者：靳晓艳[1] 李伟 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]空军驻石家庄地区军代室,河北石家庄050081

出　　处：《无线电工程》2016年第8期34-37,共4页Radio Engineering

基　　金：国家科技支撑项目(2014BAK02B04)

摘　　要：噪声雷达因其优异的抗干扰性能和低截获概率,在军事和民用领域均具有着巨大的应用潜力。针对噪声雷达地杂波消除困难的问题,提出了一种基于杂波基向量正交化的算法,该算法通过将接收信号输入格形滤波器,并自适应地调整滤波器的参数,以适应地面杂波未知的或随时间变换的统计特性,从而实现最优滤波。仿真结果表明,所提算法不仅对地杂波具有很好的消除效果,与此同时也能够有效抑制直达波。Due to its excellent anti-interference performance and low intercept rate,noise radar has great apply potential in both military and civilian fields. In solve the problem of ground clutter wave cancellation in noise radar,an algorithm based on clutter base orthogonalization is proposed. In this algorithm,receive signal is put into a lattice filter,in order to fit the unknown or time-varying statistics characteristic of the ground clutter. And the parameters of filter are adjusted adaptively. Simulation results indicate that the proposed algorithm not only provides good cancellation effect to the ground clutter,but also can effectively suppress the direct signal.

关 键 词：噪声雷达 地杂波 格形滤波器 正交化 

分 类 号：TN911.7[电子电信—通信与信息系统]