碩士 / 國立中山大學 / 海下科技暨應用海洋物理研究所 / 101 / The purpose of this study is apply the matched-field geoacoustic inversion technique to source two data collected by a 6-element, 4-m aperture vertical line array in 20-m shallow water region of Sizihwan Bay Marine Test Field. The inversion process uses a genetic-algorithm-based matched-field-processing approach to optimize the search procedure for the unknown parameters. An environmental model in the study area is derived using the broadband data (linear frequency modulated signal of 350-Hz central frequency with 100-Hz bandwidth). The model parameters include both geometric and geoacoustic variables. The quality of the inverted model is confirmed by time-continuous source localization. Analysis need to consider environment and equipment architecture for source localization. Results displayed the localization error given by the environment and the impact of boundary. Because the sampling is more difficult, will make the sediment have relatively large uncertainty. In this study, a combination of experimental design, data processing, software applications, numerical simulation, results analysis, etc. On a thorough understanding of the marine environment, and provides a reference for future studies.
| Identifer | oai:union.ndltd.org:TW/101NSYS5281010 |
| Date | January 2013 |
| Creators | Guo-En Sun, 孫國恩 |
| Contributors | Jin-Yuan Liu, 劉金源 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 101 |
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