Volume 32 Issue 05
May  2006
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Mohamed E A, Wang Yongfang, Tan Zhanzhonget al. Comparison between adaptive algorithms using in GPS receiver[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(05): 561-565. (in Chinese)
Citation: Mohamed E A, Wang Yongfang, Tan Zhanzhonget al. Comparison between adaptive algorithms using in GPS receiver[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(05): 561-565. (in Chinese)

Comparison between adaptive algorithms using in GPS receiver

  • Received Date: 19 May 2005
  • Publish Date: 31 May 2006
  • To compare the adaptive algorithms performance, such as power inversion (PI),multiple signal classification (MUSIC),and min-norm algorithms, the algorithms principle was analysed. In computer simulation, the algorithms were adopted in uniform linear array, the antenna gain in the useful signal and interference directions were compared. Power inversion, multiple signal classification, and min-norm algorithms were compared in case of using GPS signal with power -160 dBW as a useful signal and a varying power for the interference of the same frequency coming from different directions. The simulation result indicates that the three algorithms can be used for GPS receiver to achieve anti-jammer. The power inversion algorithm gives a bad result when dealing with low power interference, MUSIC algorithm can cancel the low power interference but introduces a lot of false nulls, but min-norm algorithm can cancel the low power interference and also do not introduce false nulls.

     

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