A Novel Doppler Frequency Shift Compensation Algorithm for OFDM Underwater Acoustic Communication System
作者单位：College of Engineering Ocean University of China
会议名称：《第25届中国控制与决策会议》
主办单位：IEEE;NE Univ;IEEE Ind Elect Chapter;IEEE Harbin Sect Control Syst Soc Chapter;Guizhou Univ;IEEE Control Syst Soc;Syst Engn Soc China;Chinese Assoc Artificial Intelligence;Chinese Assoc Automat;Tech Comm Control Theory;Chinese Assoc Aeronaut;Automat Control Soc;Chinese Assoc Syst Simulat;Simulat Methods & Modeling Soc;Intelligent Control & Management Soc
会议日期：2013年
学科分类：082403[工学-水声工程] 08[工学] 0824[工学-船舶与海洋工程]
基 金：supported in part by the National Natural Science Foundation of China under Grant 60704023 and 60804034 by the National High Technology Research and Development Program of China(863 Program) under Grant 2006AA09Z115
关 键 词：Underwater acoustic communication Doppler shift effect Estimation and Compensation CP
摘 要：With the rapid development of OFDM （Orthogonal Frequency Division Multiplexing） technology and its own advantages, this technology has been studied actively in underwater acoustic communication recently to improve the data transfer rate and reliability. For the reason of Doppler shift effect in underwater acoustic channel, eliminating Doppler effect became the key of whether the OFDM system can be successfully used in underwater acoustic com-munication. In this paper, a twice Doppler shift compensation algorithm was proposed, which has high compensation precision, low computational complexity and implementing easily.