TY - GEN
T1 - Multi-rank processing for passive ranging in underwater acoustic environments subject to spatial coherence loss
AU - Ge, Hongya
AU - Kirsteins, Ivars P.
PY - 2011
Y1 - 2011
N2 - In this work we derive the maximum likelihood estimator for passive wavefront curvature ranging systems operating in environments subject to a spatial coherence loss. As a consequence of the spatial coherence loss, the optimum processor is no longer a rank-1 matched filter and now instead involves a multi-rank weighted combination of the data based on the coherence matrix eigenvectors and eigenvalues. We also establish an interesting connection of our proposed multi-rank processor to the conventional rank-1 processor, and to the non-coherence sub-array processor, under different operating conditions. A comparative study is carried out in evaluating the performance of the proposed processors.
AB - In this work we derive the maximum likelihood estimator for passive wavefront curvature ranging systems operating in environments subject to a spatial coherence loss. As a consequence of the spatial coherence loss, the optimum processor is no longer a rank-1 matched filter and now instead involves a multi-rank weighted combination of the data based on the coherence matrix eigenvectors and eigenvalues. We also establish an interesting connection of our proposed multi-rank processor to the conventional rank-1 processor, and to the non-coherence sub-array processor, under different operating conditions. A comparative study is carried out in evaluating the performance of the proposed processors.
KW - Parameter Estimation Performance
KW - Passive Source Localization
UR - http://www.scopus.com/inward/record.url?scp=80051645957&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80051645957&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2011.5947040
DO - 10.1109/ICASSP.2011.5947040
M3 - Conference contribution
AN - SCOPUS:80051645957
SN - 9781457705397
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 2692
EP - 2695
BT - 2011 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 - Proceedings
T2 - 36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011
Y2 - 22 May 2011 through 27 May 2011
ER -