TY - GEN
T1 - Wideband geoacoustic inversion using synchrosqueezing transform
AU - Liu, Hong
AU - Yang, Kunde
AU - Ma, Yuanliang
AU - Yang, Qiulong
AU - Xu, Liya
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/12/4
Y1 - 2018/12/4
N2 - Inversion based on modal characteristics is an effective method to estimate shallow water bottom parameters. The precision of dispersion curve extraction has a significant impact on inversion result. In this paper, a method of combination of warping transform and synchrosqueezing transform is introduced to extract mode dispersion curves. It is applied to process an air-gun impulsive signal during a shallow water sound propagation experiment in the winter. According to the normal mode theory, the arrival time difference of propagation modes computed by dispersion curves are used to invert bottom parameters. Genetic algorithm is used for inversion. In addition, the reliability of inversion result is verified by in suit measurement and a posteriori probability statistics.
AB - Inversion based on modal characteristics is an effective method to estimate shallow water bottom parameters. The precision of dispersion curve extraction has a significant impact on inversion result. In this paper, a method of combination of warping transform and synchrosqueezing transform is introduced to extract mode dispersion curves. It is applied to process an air-gun impulsive signal during a shallow water sound propagation experiment in the winter. According to the normal mode theory, the arrival time difference of propagation modes computed by dispersion curves are used to invert bottom parameters. Genetic algorithm is used for inversion. In addition, the reliability of inversion result is verified by in suit measurement and a posteriori probability statistics.
KW - Geoacoustic inversion
KW - Synchrosqueezing transform
KW - Warping transform
UR - https://www.scopus.com/pages/publications/85060285066
U2 - 10.1109/OCEANSKOBE.2018.8559240
DO - 10.1109/OCEANSKOBE.2018.8559240
M3 - 会议稿件
AN - SCOPUS:85060285066
T3 - 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018
BT - 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018
Y2 - 28 May 2018 through 31 May 2018
ER -