Title :
Spatial-Vector Smoothing for Coherent Sources in Presence of a Reflecting Boundary
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont.
Abstract :
A new spatial-vector smoothing algorithm for multiple coherent sources is proposed based on the measurement model of 3-D cylindrical array with multi vector-hydrophones, which is located on or near a reflecting boundary. And the performance of the proposed algorithm is examined in two practical applications: hull-mounted and seabed array. The advantages of the spatial-vector smoothing scheme are: (1) less reduction in the overall array´s spatial aperture, (2) no limit to the maximum number of coherent sources
Keywords :
acoustic signal processing; array signal processing; hydrophones; smoothing methods; 3D cylindrical array; array spatial aperture; coherent sources; hull-mounted array; measurement model; multi vector-hydrophones; multiple coherent sources; reflecting boundary; seabed array; spatial-vector smoothing algorithm; Apertures; Azimuth; Covariance matrix; Direction of arrival estimation; Electric variables measurement; Geometry; Sea measurements; Signal restoration; Smoothing methods; Sonar equipment;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on
Conference_Location :
Toulouse
Print_ISBN :
1-4244-0469-X
DOI :
10.1109/ICASSP.2006.1661162
