Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (5): 1022-1025.

• 电子技术 • 上一篇    下一篇

GPS空时自适应抗干扰系统性能研究

项建弘1, 郭黎利1, 陈立明2   

  1. 1. 哈尔滨工程大学信息与通信工程学院, 黑龙江, 哈尔滨, 150001;
    2. 北京遥感设备研究所, 北京, 100854
  • 收稿日期:2008-06-11 修回日期:2008-11-28 出版日期:2009-05-20 发布日期:2010-01-03
  • 作者简介:项建弘(1977- ),男,讲师,主要研究方向为数字通信,通信信号处理.E-mail:xiangiianhong@hrbeu.edu.cn

Study of performance of GPS space-time adaptive anti-jam system

XIANG Jian-hong1, GUO Li-li1, CHEN Li-ming2   

  1. 1. Coll. of Information and Communications Engineering, Harbin Engineering Univ., Harbin 150001, China;
    2. Beijing Inst. of Remote Sensing Equipment, Beijing 100854, China
  • Received:2008-06-11 Revised:2008-11-28 Online:2009-05-20 Published:2010-01-03

摘要: 针对GPS接收系统的空时自适应抗干扰技术,讨论了基于FROST阵列处理的最小均方算法LMS——FROST-LMS(FLMS)算法.通过对时空自适应处理STAP和算法的建模,研究了该系统以及GPS接收机的性能.系统仿真表明,FLMS算法能够抑制大于阵元个数的多个宽、窄带干扰,抑制效果达到30 dB~50 dB,并使接收机整体抗干扰能力达到65 dB左右.

Abstract: To the technology on space-time adaptive anti-jam of GPS receiver system,the paper discusses least-mean-square(LMS) algorithm based on FORST array processing—FORST-LMS(FLMS) algorithm.By modeling space-time adaptive processing(STAP) and FLMS algorithm,it researches the performance of anti-jam system and GPS receiver.The simulations show the number of wideband and narrowband interferences suppressed by FLMS algorithm is more than that of the sensors of array antenna.FLMS algorithm can restrain the intensity of interference up to 40 dB~50 dB,and improve the capability of GPS receiver suppressing interference to 65 dB.

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