English  |  正體中文  |  简体中文  |  Items with full text/Total items : 27228/39071
Visitors : 2413288      Online Users : 33
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/28571

Title: Real Time Implementation of Frost Beamformer for Underwater Communications
FROST波束構成器於水下通訊之即時實現
Authors: Hsien-Sen Hung;Shun-Hsyung Chang;Suan-Lin Chen;Chi-Wen Chang
洪賢昇;張順雄;陳玄齡;張啓文
Contributors: NTOU:Department of Electrical Engineering
國立臺灣海洋大學:電機工程學系
Keywords: Adaptive beamformer;Underwater communications;Fading channel;Digital signal processor
Date: 1999-06-01
Issue Date: 2011-10-21T02:38:11Z
Publisher: Journal of Marine Science and Technology
Abstract: 摘要:在本篇論文中,我們針對四相位移鍵(QPSK)訊號於端理(Rayleigh)和端斯(Rician)退化通道傳遞時,經由電腦模擬以探討彿洛斯特(Frost)線性限制最小變異適應波束構成器的特性。模擬結果顯示,Frost波束構成器在退化通道下,仍可以改喜訊擾雜比。另外,對於即時的水下通訊而言,我們以TMS320C40數位訊號處理晶片,來研製實現Frost波束構成器的雛形系統。經由水槽內的實驗結果,證實此即時波束構成器雛形系統的正確性,並對其應用於水下通訊作可行性的評估。
Abstract:In this paper, we investigate the performance of Frost's linearly constrained minimum variance (LCMV) adaptive beamformer via computer simulations for QPSK signals transmitted over Rayleigh and Rician fading channels. Simulation results show that the Frost beamformer can still improve the signal-to-interference-plus-noise ratio, even over fading channels. For real-time underwater communications, a prototype system is implemented, which uses TMS320C40 digital signal processor chip for realization of the Frost beamformer. Through experiments in an acoustic trough the validity of the real-time Frost beamformer prototype system is verified, and the feasibility of its use in underwater communications is assessed.
Relation: 7(1), pp.1-7
URI: http://ntour.ntou.edu.tw/handle/987654321/28571
Appears in Collections:[電機工程學系] 期刊論文

Files in This Item:

File Description SizeFormat
index.html0KbHTML206View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback