教師資料查詢 | 類別: 期刊論文 | 教師: 劉金源LIU, JIN-YUAN (瀏覽個人網頁)

標題:Acoustic mapping of ocean currents using networked distributed sensors
學年102
學期1
出版(發表)日期2013/08/26
作品名稱Acoustic mapping of ocean currents using networked distributed sensors
作品名稱(其他語言)
著者Chen-Fen Huang; T. C. Yang; Jin-Yuan Liu; Jeff Schindall
單位
出版者
著錄名稱、卷期、頁數Journal of Acoustical Society of America,134,p.2090-2105
摘要Distributed underwater sensors are expected to provide oceanographic monitoring over large areas. As fabrication technology advances, low cost sensors will be available for many uses. The sensors communicate to each other and are networked using acoustic communications. This paper first studies the performance of such systems for current measurements using tomographic inversion approaches to compare with that of a conventional system which distributes the sensors on the periphery of the area of interest. It then proposes two simple signal processing methods for ocean current mapping (using distributed networked sensors) aimed at real-time in-buoy processing. Tomographic inversion generally requires solving a challenging high dimensional inverse problem, involving substantial computations. Given distributed sensors, currents can be constructed locally based on data from neighboring sensors. It is shown using simulated data that similar results are obtained using distributed processing as using conventional tomographic approaches. The advantage for distributed systems is that by increasing the number of nodes, one gains a much more improved performance. Furthermore, distributed systems use much less energy than a conventional tomographic system for the same area coverage. Experimental data from an acoustic communication and networking experiment are used to demonstrate the feasibility of acoustic current mapping.
關鍵字
語言中文
ISSN
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式,電子版
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