The M-DSO-ESPRIT Method for Maximum Likelihood DOA Estimation

doi:10.2528/PIER07121106

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Progress In Electromagnetics Research	ISSN: 1070-4698, E-ISSN: 1559-8985

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THE M-DSO-ESPRIT METHOD FOR MAXIMUM LIKELIHOOD DOA ESTIMATION

By L. Lizzi, F. Viani, M. Benedetti, P. Rocca, and A. Massa

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Abstract:
The estimation of the directions-of-arrival (DoAs) of multiple signals is a topic of great relevance in smart antenna synthesis and signal processing applications. In this paper, a memory-based method is proposed to compute the maximum likelihood (ML) DoA estimates. Such a conceptually-simple technique is based on the datasupported optimization (DSO) and the estimation of signal parameters via rotational invariance technique (ESPRIT), but fully exploits a memory mechanism for improving the estimation accuracy especially when dealing with critical scenarios characterized by low signal-tonoise ratios (SNR) or/and small number of snapshots. Simulation results assess the potentialities and limitations of the proposed approach that favorably compares with state-of-the-art methods.

Citation:
L. Lizzi, F. Viani, M. Benedetti, P. Rocca, and A. Massa, "The M-DSO-ESPRIT Method for Maximum Likelihood DOA Estimation," Progress In Electromagnetics Research, Vol. 80, 477-497, 2008.
doi:10.2528/PIER07121106
http://www.jpier.org/PIER/pier.php?paper=07121106

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