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| Algorithm on High Resolution DOA Estimation without Sources Number |
| Zhang Tao-lin; Liu Ying; Liao Gui-sheng |
| Key Lab for Radar Signal Processing, Xidian University, Xi’an 710071, China |
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Abstract Many of the super resolution DOA(Direction-Of-Arrival) estimation algorithms presume the number of signal sources. Since the sample snapshot is limited, however, the available algorithms on source number estimation may fail at lower SNR. In this paper, a novel algorithm for high resolution DOA estimation is proposed, which not only skips sources number estimation and EVD, but also behaves satisfactorily with a few snapshot, it may be viewed as a combination of merit of conventional Capon and MUSIC method. The algorithm’s feasibility and robustness are analyzed and verified by the simulation and actual experiment data.
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Received: 10 July 2006
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2008, Vol. 30 
