Title :
Mode sign estimation to improve source depth estimation
Author :
Nicolas, Barbara ; Touzé, Grégoire Le ; Mars, Jérôme I.
Author_Institution :
Dept. Images Signal, GIPSA-Lab., St. Martin d´´Heres
fDate :
March 31 2008-April 4 2008
Abstract :
This paper describes source depth estimation in shallow water environments using a Horizontal Line Array of hydrophones on the sea bottom. A method based on modal propagation, using mode amplitude modulus, has been proposed by Nicolas, B., et al, (2006). As knowledge of the sign of mode amplitudes can improve source depth estimation, we present a estimator of these signs and integrate them in the source depth estimation method. Results on real data are shown.
Keywords :
acoustic signal processing; array signal processing; estimation theory; hydrophones; underwater acoustic propagation; horizontal line array; hydrophones; modal propagation; mode amplitude modulus; mode sign estimation; shallow water environments; source depth estimation; Acoustic propagation; Adaptive arrays; Amplitude estimation; Data mining; Fourier transforms; Frequency; Sonar equipment; Underwater acoustics; Water resources; Waveguide theory; Underwater acoustics; matched-mode processing; mode sign estimation; source depth estimation;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-1483-3
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2008.4518140
