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| A Robust Criterion for Direction of Arriving Estimation Based on Phase Matched Theory |
| Wang Hui-gang; Li Zhi-shun; Sun Jin-cai |
| Marine Engineering College Northwestern Pofytechnical University Xi’an 710072 China |
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Abstract A new method for Direction of Arriving (DOA) Estimation-Phase Matched Theory (PMT) is introduced, which computation complexity is simple and performance is unaffected by unknown correlated noise. Compared with energy criterion, a robust criterion based on SVD improves the bias and variance of estimation and the simplicity is still kept. Computer simulation shows that the criterion’s performance approximates MUSIC algorithm at high SNR and exceeds it at low SNR. Specially, this algorithm still has good performance under unknown correlated noise.
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Received: 27 October 2003
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2005, Vol. 27 
