Title :
Adaptive anti-jamming algorithm based on the characteristics of the GPS signal
Author :
Li, Ping ; Lu, Dan ; Wu, Renbiao ; Su, Zhigang
Author_Institution :
Civil Aviation Univ. of China, Tianjin
fDate :
Nov. 28 2007-Dec. 1 2007
Abstract :
In this paper, a novel adaptive anti-jamming algorithm for Global Positioning System (GPS) is proposed, which uses the characteristics of the GPS signal. Firstly, the interference is suppressed by projecting the received signal onto the interference orthogonal subspace. Then, the interference- free signal is processed by cyclic adaptive beamforming (CAB) algorithm in order to enhance the GPS signal. Additionally, we make a brief analysis of the conjugate cyclic correlation (CCC) matrix under finite snapshots. And in the estimation of CCC matrix we introduce the Hankel approximation method which helps to improve the performance of the proposed algorithm.
Keywords :
Global Positioning System; Hankel matrices; approximation theory; array signal processing; interference suppression; jamming; GPS signal; Global Positioning System; Hankel approximation method; adaptive anti-jamming algorithm; conjugate cyclic correlation matrix; cyclic adaptive beamforming; interference orthogonal subspace; Adaptive signal processing; Approximation algorithms; Approximation methods; Array signal processing; Covariance matrix; Direction of arrival estimation; Global Positioning System; Interference suppression; Signal processing; Signal processing algorithms; GPS; anti-jamming; cyclic conjugate correlation; orthogonal projection;
Conference_Titel :
Intelligent Signal Processing and Communication Systems, 2007. ISPACS 2007. International Symposium on
Conference_Location :
Xiamen
Print_ISBN :
978-1-4244-1447-5
Electronic_ISBN :
978-1-4244-1447-5
DOI :
10.1109/ISPACS.2007.4445856
