Topic: Perspectives on Geoacoustic Inversion

Time: 10月8日，上午11:00~12:00

Venue: 玉泉校区 信电楼215室（学术厅）

Speaker：Prof. Ross Chapman, School of Earth and Ocean Sciences, University of Victoria

Abstract: Over the past several decades, there has been a significant amount of research effort in ocean acoustics to develop methods for inverting parameters of geoacoustic models from measurements of the acoustic field in the ocean. This paper reviews the stages in the development of geoacoustic inversion as a statistical inference process to estimate geoacoustic model parameter values and their associated uncertainties. Limitations of model-based inversion methods such as matched field inversion are discussed. The paper concludes by discussing some new approaches that address limitations caused by uncertain ocean waveguide environments.

Speaker Biography: Prof. Ross Chapman is a Fellow of the IEEE, and a fellow of the Acoustical Society of America. He started his career at the Defence Research Establishment Pacific (DREP), Canada, as a defence scientist in the Ocean Acoustics group. He left DREP in 1995 when he was appointed Professor and Senior Research Chair in Ocean Acoustics at the University of Victoria. He is currently the editor-in-chief of the IEEE Journal of Oceanic Engineering.