Title :
A novel adaptive multi-beam GNSS anti-interference processing system
Author :
Yuan, Xiao-dong ; Wan, Jian-wei ; Cheng, Zhu ; Shi, Bin-bin ; Fu, Hao
Author_Institution :
Nat. Univ. of Defense Technol., Changsha, China
Abstract :
An anti-interference system based on the adaptive algorithm is proposed for the Global Navigation Satellite Systems (GNSS) anti-interference application. The proposed system utilizes the low complexity adaptive algorithm for interference suppression and beamforming. The constraint condition for the beamforming algorithm is per satellite constraint, which ensures each GNSS satellite has the largest signal to interference and noise ratio (SINR). The adaptive beamforming with restraint is translated into the adaptive filter problem without restraint by generalized sidelobe canceller (GSC) structure, which could be realized easily by adaptive algorithm. It is confirmed by the practical test that the proposed system can suppress interference and form the multi-beam very effectively with low complexity.
Keywords :
adaptive filters; array signal processing; communication complexity; interference suppression; satellite navigation; GNSS satellite; adaptive beamforming; adaptive filter problem; adaptive multibeam GNSS anti-interference processing system; complexity adaptive algorithm; generalized sidelobe canceller structure; global navigation satellite system anti-interference application; interference beamforming; interference suppression; satellite constraint; signal to interference ratio; signal to noise ratio; Algorithm design and analysis; Array signal processing; Global Navigation Satellite Systems; Interference; Satellite broadcasting; Satellites; Signal processing algorithms; GNSS; adaptive algorithm; anti-interference; low complexity; mult-beam;
Conference_Titel :
Wireless Communications and Signal Processing (WCSP), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4577-1009-4
Electronic_ISBN :
978-1-4577-1008-7
DOI :
10.1109/WCSP.2011.6096831
