TY - GEN
T1 - Estimating sediment properties with sub-bottom reflection signals
AU - Yang, Kunde
AU - Chapman, Ross
AU - Lei, Bo
PY - 2008
Y1 - 2008
N2 - An inversion method based on sub-bottom reflections was investigated using the Shallow Water 2006 (SW06) experimental data. Because the direct arrivals in the water were influenced strongly by water sound speed inhomogeneities, the first sea-bottom reflection was applied as the reference path to calculate the relative arrival time and amplitude of sub-bottom reflection. Firstly the sediment sound speed and thickness were estimated using different source depths and receiver depths. Then the sediment attenuation was estimated by assuming that it had linear frequency dependence. The estimated values of the sediment properties compared well with the core data, the chirp sonar data, and the matched field inversion results.
AB - An inversion method based on sub-bottom reflections was investigated using the Shallow Water 2006 (SW06) experimental data. Because the direct arrivals in the water were influenced strongly by water sound speed inhomogeneities, the first sea-bottom reflection was applied as the reference path to calculate the relative arrival time and amplitude of sub-bottom reflection. Firstly the sediment sound speed and thickness were estimated using different source depths and receiver depths. Then the sediment attenuation was estimated by assuming that it had linear frequency dependence. The estimated values of the sediment properties compared well with the core data, the chirp sonar data, and the matched field inversion results.
UR - https://www.scopus.com/pages/publications/62949246639
U2 - 10.1109/IITA.2008.251
DO - 10.1109/IITA.2008.251
M3 - 会议稿件
AN - SCOPUS:62949246639
SN - 9780769534978
T3 - Proceedings - 2008 2nd International Symposium on Intelligent Information Technology Application, IITA 2008
SP - 296
EP - 300
BT - Proceedings - 2008 2nd International Symposium on Intelligent Information Technology Application, IITA 2008
T2 - 2008 2nd International Symposium on Intelligent Information Technology Application, IITA 2008
Y2 - 21 December 2008 through 22 December 2008
ER -