Paper Info
Title
A novel interference suppression scheme for global navigation satellite systems using antenna array
Abstract
This paper considers interference suppression and multipath mitigation in Global Navigation Satellite Systems (GNSSs). In particular, a self-coherence anti-jamming scheme is introduced which relies on the unique structure of the coarse/acquisition (C/A) code of the satellite signals. Because of the repetition of the C/A-code within each navigation symbol, the satellite signals exhibit strong self-coherence between chip-rate samples separated by integer multiples of the spreading gain. The proposed scheme utilizes this inherent self-coherence property to excise interferers that have different temporal structures from that of the satellite signals. Using a multiantenna navigation receiver, the proposed approach obtains the optimal set of beamforming coefficients by maximizing the cross correlation between the output signal and a reference signal, which is generated from the received data. It is demonstrated that the proposed scheme can provide high gains toward all satellites in the field of view, while suppressing strong interferers. By imposing constraints on the beamformer, the proposed method is also capable of mitigating multipath that enters the receiver from or near the horizon. No knowledge of either the transmitted navigation symbols or the satellite positions is required.
Year
DOI
Venue
2005
10.1109/JSAC.2005.845404
IEEE Journal on Selected Areas in Communications
Keywords
Field
DocType
Global Positioning System,antenna arrays,code division multiple access,correlation theory,interference suppression,optimisation,radio receivers,radiofrequency interference,satellite antennas,spread spectrum communication,GNSS,Global Navigation Satellite System,acquisition code,antenna array,beamforming coefficient,coarse code,cross correlation maximization,integer multiplication,interference suppression,multiantenna navigation receiver,multipath mitigation,navigation symbol transmission,optimal set,satellite signal,self-coherence antijamming scheme,signal reference,temporal structure,Anti-jamming,global navigation satellite system (GNSS),interference suppression,multipath mitigation,self- coherence
Multipath propagation,Beamforming,Telecommunications,Computer science,Antenna array,Real-time computing,Electronic engineering,Multipath mitigation,Interference (wave propagation),Global Positioning System,Code division multiple access,Spread spectrum
Journal
Volume
Issue
ISSN
23
5
0733-8716
Citations 
PageRank 
References 
24
2.57
7
Authors
2
Name
Order
Citations
PageRank
Moeness Amin12909287.79
SUN Wei224726.63