TY - GEN
T1 - A polynomial rooting approach to the localization of coherently scattered sources
AU - Goldberg, Jason
AU - Messer, Hagit
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1998
Y1 - 1998
N2 - The problem of passive localization of coherently scattered sources with an array of sensors is considered. The spatial extent of such a source is typically characterized by an angular mean and an angular spreading parameter. The maximum likelihood (ML) estimator for this problem requires a complicated search of dimension equal to twice the number of sources. However, a previously reported sub-optimal MUSIC type method reduces the search dimension to two (independently of the number of sources). In this paper, the search over the angular mean parameter in the above MUSIC type technique is replaced by a possibly more efficient polynomial rooting procedure. Computer simulations verify the effectiveness of the proposed method compared to the performance of the ML and MUSIC estimators as well as to the Cramer-Rao bound.
AB - The problem of passive localization of coherently scattered sources with an array of sensors is considered. The spatial extent of such a source is typically characterized by an angular mean and an angular spreading parameter. The maximum likelihood (ML) estimator for this problem requires a complicated search of dimension equal to twice the number of sources. However, a previously reported sub-optimal MUSIC type method reduces the search dimension to two (independently of the number of sources). In this paper, the search over the angular mean parameter in the above MUSIC type technique is replaced by a possibly more efficient polynomial rooting procedure. Computer simulations verify the effectiveness of the proposed method compared to the performance of the ML and MUSIC estimators as well as to the Cramer-Rao bound.
UR - http://www.scopus.com/inward/record.url?scp=0031636191&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.1998.681548
DO - 10.1109/ICASSP.1998.681548
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AN - SCOPUS:0031636191
SN - 0780344286
SN - 9780780344280
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 2057
EP - 2060
BT - Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998
Y2 - 12 May 1998 through 15 May 1998
ER -