Sequential Parameter Estimation Using Modal Dispersion Curves in Shallow Water  

作　　者：Xue-Dong Zhang Li-Xin Wu Hai-Qiang Niu Ren-He Zhang 张雪冬;吴立新;牛海强;张仁和(State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190;University of Chinese Academy of Sciences, Beijing 100049)

机构地区：[1]State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190 [2]University of Chinese Academy of Sciences, Beijing 100049

出　　处：《Chinese Physics Letters》2018年第4期56-60,共5页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 11434012,11774374,11404366 and41561144006

摘　　要：Existing sequential parameter estimation methods use the acoustic pressure of a line array as observations. The modal dispersion curves are employed to estimate the sound speed profile（SSP） and geoacoustic parameters based on the ensemble Kalman filter. The warping transform is implemented to the signals received by a single hydrophone to obtain the dispersion curves. The experimental data are collected at a range-independent shallow water site in the South China Sea. The results indicate that the SSPs are well estimated and the geoacoustic parameters are also well determined. Comparisons of the observed and estimated modal dispersion curves show good agreement.Existing sequential parameter estimation methods use the acoustic pressure of a line array as observations. The modal dispersion curves are employed to estimate the sound speed profile（SSP） and geoacoustic parameters based on the ensemble Kalman filter. The warping transform is implemented to the signals received by a single hydrophone to obtain the dispersion curves. The experimental data are collected at a range-independent shallow water site in the South China Sea. The results indicate that the SSPs are well estimated and the geoacoustic parameters are also well determined. Comparisons of the observed and estimated modal dispersion curves show good agreement.

关 键 词：Sequential Parameter Estimation Using Modal Dispersion Curves in Shallow Water 

分 类 号：O427[理学—声学]