Sparsity Enhanced Beamforming in The Presence of Coherent Signals

DOI

10.2991/icaicte.2013.113How to use a DOI?

Keywords

distortless response of signal subspace; minimum variance of noise subspace; sparse representation; direction finding; coherent signals

Abstract

In order to find the directions of coherent signals, a sparsity enhanced beam-forming method is proposed. The mini-mum variance in the proposed method corresponds to the orthogonal relation-ship between the noise subspace and the sparse representation of the received sig-nal vector, whereas the distortless re-sponse corresponds to the non-orthogonal relationship between the signal subspace and the sparse representation of the received signal vector. The proposed sparsity enhanced method is carried out by the iterative reweighted Lp-norm constraint minimiza-tion for direction finding of coherent signals. Simulation results are provided to show that it has better performance than the existing algorithms in presence of co-herent signals.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Bao Gen Xu
AU  - Yi He Wan
AU  - Qun Wan
AU  - Si Long Tang
AU  - Xue Ke Ding
AU  - Lin Zou
PY  - 2013/08
DA  - 2013/08
TI  - Sparsity Enhanced Beamforming in The Presence of Coherent Signals
BT  - Proceedings of the 2013 International Conference on Advanced ICT and Education
PB  - Atlantis Press
SP  - 551
EP  - 555
SN  - 1951-6851
UR  - https://doi.org/10.2991/icaicte.2013.113
DO  - 10.2991/icaicte.2013.113
ID  - Xu2013/08
ER  -