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3-D MUSIC with polynomial rooting for near-field source localization

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3 Author(s)
Hsien-Sen Hung ; Nat. Taiwan Ocean Univ., Taiwan ; Shun-Hsyung Chang ; Chieng-Hsing Wu

The bearing, elevation, and range estimation of near-field narrow-band sources from data observed across an array of sensors is considered. For high-resolution source localization, the multiple signal classification (MUSIC) algorithm is modified and extended to its 3-D version by accounting for the spherical curvature and spreading factor in the array manifold. However, the simultaneous estimation of bearing, elevation, and range from the 3-D MUSIC spectrum requires exhaustive multidimensional search. In order to alleviate the computational load, an alternative algorithm is proposed. The proposed algorithm involves a search in the range domain combined with polynomial rooting, which replaces the search in the azimuth-elevation domain, for bearing and elevation estimation

Published in:

Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on  (Volume:6 )

Date of Conference:

7-10 May 1996

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