稳健的GPS干扰抑制方案研究  

A research of robust GPS anti-jamming scheme

作　　者：潘延明[1] 卢艳娥[1] 骆艳卜[1] 李思佳[1] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077

出　　处：《重庆邮电大学学报（自然科学版）》2012年第3期330-334,共5页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：国家自然科学基金(61071014);空军工程大学电讯工程学院科研创新基金(DYCX1001)~~

摘　　要：针对小快拍情况下,GPS干扰抑制的稳健性下降的问题,提出一种基于自适应对角加载的迭代相关相减多级维纳滤波算法(iteration correlation subtraction algorithm-multistage wiener filter,ICSA-MWF)。该算法是在充分利用ICSA-MWF给出的干扰和噪声特征信息的基础上,通过分析ICSA-MWF的迭代过程而得到的一种新的自适应干扰抑制方法。仿真结果表明,新算法在迭代中自适应地选择加载量,较大程度地提高了小快拍下干扰抑制的稳健性,进一步减小了ICSA-MWF的计算量,从而提高了干扰抑制的实时性。In order to solve the problem of GPS anti-jamming performance degradation in the condition of small sample support,a novel scheme of iteration correlation subtraction algorithm-multistage wiener filter（ICSA-MWF）based on adaptive diagonal loading is proposed.The scheme is a new solution of adaptive anti-jamming by analyzing ICSA-MWF＇s recursion process based on making full use of the jam and noise＇s eigenvalue information provided by ICSA-MWF.The experiment results show that the diagonal loading factor is adjusted adaptively,the robust of GPS anti-jamming is increased largely,and the computational burden is reduced by using the novel method.The real-time property of anti-jamming is enhanced.

关 键 词：空时自适应处理 多级维纳滤波 迭代相关相减算法 特征值 对角加载 

分 类 号：TN967.1[电子电信—信号与信息处理] TN973.1[电子电信—信息与通信工程]