Wideband DOA Estimation Algorithm Based on Signal Subspace Rebuilding

DOI

10.2991/ceie-16.2017.76How to use a DOI?

Keywords

Wideband; Direction-of-arrival (DOA) Estimation; Signal Subspace Rebuilding

Abstract

A new direction-of-arrival (DOA) estimation algorithm based on signal subspace rebuilding (SSR) is proposed for wideband sources. In the proposed algorithm, the signal subspaces are filtered by SSR to reduce the effect of the direction vectors of non-supposed directions. The signal subspaces of each frequency bin are focused and averaged to enhance the Signal-to-Noise Ratio (SNR) of signal subspace. Therefore the quality of spatial spectrum is enhanced. The algorithm does not require initial estimation of the DOAs. The performance of some wideband algorithms is compared with that of the algorithm through computer simulations. The simulation results show that the proposed algorithm has a higher resolution with lower bias and variance than other wideband algorithms.

Copyright

© 2017, 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/).

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TY  - CONF
AU  - Zhiqiang Liu
AU  - Hongguang Ma
AU  - Jian Yang
PY  - 2016/10
DA  - 2016/10
TI  - Wideband DOA Estimation Algorithm Based on Signal Subspace Rebuilding
BT  - Proceedings of the International Conference on Communication and Electronic Information Engineering (CEIE 2016)
PB  - Atlantis Press
SP  - 596
EP  - 602
SN  - 2352-5401
UR  - https://doi.org/10.2991/ceie-16.2017.76
DO  - 10.2991/ceie-16.2017.76
ID  - Liu2016/10
ER  -