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Proceedings Paper

A new wideband interference suppression method for GNSS system
Author(s): Yan Bai; XiaoChun Lu; Tao Han; Jin Wang
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Paper Abstract

GNSS navigation system has a shortage—the satellite navigation signal is vulnerable to various interferences and thus leads to losses in performance of received signal. Wideband interference is common oppressive which impact on the receiver performance badly. In this paper, aiming at the linear frequency modulation (LFM) wideband interference, a new interference suppression method based on NEW-MDCFT is presented, and the model and implementation method of the suppression algorithm have been introduced. By adding the LFM jamming to the COMPASS B1 signal, the interference suppression method is simulated, and time domain performance, frequency domain performance, acquisition performance and tracking performance of the signal before and after interference suppression have been given. The results indicate that, the suppression method based on NEW-MDCFT has good LFM interference suppression performance and is able to perform good interference suppression in seriously-interfered environment.

Paper Details

Date Published: 6 March 2015
PDF: 7 pages
Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 944653 (6 March 2015); doi: 10.1117/12.2182632
Show Author Affiliations
Yan Bai, National Time Service Ctr. (China)
Univ. of Chinese Academy of Sciences (China)
XiaoChun Lu, National Time Service Ctr. (China)
Tao Han, National Time Service Ctr. (China)
Univ. of Chinese Academy of Sciences (China)
Jin Wang, National Time Service Ctr. (China)
Univ. of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 9446:
Ninth International Symposium on Precision Engineering Measurement and Instrumentation
Junning Cui; Jiubin Tan; Xianfang Wen, Editor(s)

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