期刊文献+

基于DFT的OFDM水声通信信道估计算法 被引量:8

Channel Estimation Algorithm in Underwater Acoustic Communication Based on DFT and OFDM
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摘要 在水下通信中,要求提供高速率和高可靠性的通信服务,而正交频分多路复用(OFDM)因具有频带利用率高和抗多径能力强等优点,近年来受到广泛的重视。文中主要研究在采用梳状导频图案的OFDM水声通信系统中,利用DFT变换的方法来实现信道估计,并结合水声通信系统模型对此算法进行了计算机仿真。仿真结果表明该方法在提高计算效率的同时获得了很好的性能,因此非常适用于实时高速水声通信系统。 The channel estimation is one of the key technologies in communication transmission field, and affects the performance of the communication system. In this paper, DFT-based channel estimator is used for investigating the orthogonal frequency division multiplexing (OFDM) underwater acoustic communication system based on comb-pilot pattern. Simulations results show that the method has a good performance and low computational complexity in the underwater acoustic communication. Therefore, DFT-based channel estimator has a good application prospect for real-time and high rate underwater acoustic communication.
出处 《数据采集与处理》 CSCD 北大核心 2009年第1期44-48,共5页 Journal of Data Acquisition and Processing
基金 国家"八六三"高技术研究发展计划(2006AA09Z105)资助项目 国家自然科学基金(10704020)资助项目
关键词 水声通信 正交频分复用 信道估计 DFT underwater acoustic communication orthogonal frequency division multiplexing(OFDM) channel estimation DFT
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参考文献8

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共引文献46

同被引文献96

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