Wideband DOA Estimation Algorithm Based on Signal Subspace Rebuilding
Zhiqiang Liu, Hongguang Ma, Jian Yang
Available Online October 2016.
- https://doi.org/10.2991/ceie-16.2017.76How to use a DOI?
- Wideband; Direction-of-arrival (DOA) Estimation; Signal Subspace Rebuilding
- 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.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
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 - https://doi.org/10.2991/ceie-16.2017.76 ID - Liu2016/10 ER -