广东工业大学学报 ›› 2015, Vol. 32 ›› Issue (04): 67-71.doi: 10.3969/j.issn.1007-7162.2015.04.012

• 综合研究 • 上一篇    下一篇

基于阵列天线处理的GPS信号抗干扰研究

皮姣, 刘立程, 王峰, 曹鼎, 吕嘉卿   

  1. 广东工业大学 信息工程学院,广东 广州 510006
  • 收稿日期:2014-12-29 出版日期:2015-12-04 发布日期:2015-12-04
  • 作者简介:皮姣(1989-),女,硕士研究生,主要研究方向为卫星导航信号处理.
  • 基金资助:

    广东省科技计划项目(2013B010401026)

Anti-interference Study of GPS Signal Based on Array Antenna Processing

Pi Jiao, Liu Li-cheng, Wang Feng, Cao Ding, Lü Jia-qing   

  1. School of Information Engineering, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2014-12-29 Online:2015-12-04 Published:2015-12-04

摘要: 针对强干扰低信噪比条件下的全球定位系统(GPS)信号的接收抗干扰问题,提出了结合功率倒置算法和相位补偿的抗干扰方法.该方法通过利用功率倒置算法对GPS信号进行预处理,使其能正确解调,并进一步对GPS信号进行相位补偿处理,提高信噪比.仿真结果表明,该方法能有效抑制强干扰,增强信噪比,提高GPS接收机的抗干扰能力.

关键词: 全球定位系统, 弱信号, 阵列天线, 功率倒置算法, 抗干扰

Abstract: In order to solve the problem of anti-interference of global positioning system (GPS) under the condition of low SNR and strong interference, this paper puts forward the combined power inversion algorithm and phase compensation of anti-interference. The method applies power inversion algorithm of the GPS signal pre-processing to accurately demodulate and further process the the phase compensation of GPS signals to improve the SNR. Simulation results show that the method can effectively restrain the interference, enhance SNR, and improve the anti-interference ability of the receiver.

Key words: global positioning system(GPS), weak signal, the array antenna, power inversion algorithm, anti-interference

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