J4 ›› 2011, Vol. 38 ›› Issue (6): 15-21+88.doi: 10.3969/j.issn.1001-2400.2011.06.003

• Original Articles • Previous Articles     Next Articles

Multistage minimal module method for space-time interference suppression GPS receivers

HUANG Qingdong1,2;ZHANG Linrang1;WANG Chun1;ZHANG Bo1   

  1. (1. National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an  710071, China;
    2. School of Commun. and Info. Eng., Xi'an Univ. of Posts and Telecomm., Xi'an  710121, China)
  • Received:2010-10-09 Online:2011-12-20 Published:2011-11-29
  • Contact: HUANG Qingdong E-mail:huangqingdong@xupt.edu.cn

Abstract:

For suppression of the influence of impulsive noise spikes (outliers) from desired signal direction of arrival in GPS signals, the multistage minimal module cascaded canceller is proposed. The method substitutes the weights of the multistage Winner filter for the minimal module weights, which have the minimal module of the samples quotient, and is adopted in space-time anti-jamming processing in the GPS receiver. The method has the prominent ability to restrict the influence of impulsive noise spikes (outliers) from desired signal direction of arrival to adaptive weights, and the ability of low complexity, as well as fast convergence. Simulation results indicate the method achieves a better fast convergence ability and good performance in reducing the influence of impulsive noise spikes (outliers) on adaptive weights.

Key words: array signal processing, global positioning system(GPS), low complexity, space-time(ST), anti-jamming

CLC Number: 

  • TN911.23