| 杨波,朱敏,武岩波,孙晓艳.一种基于DFT时域插值的OFDM水声信道估计改进方法[J].,2012,31(5):352-357 |
| 一种基于DFT时域插值的OFDM水声信道估计改进方法 |
| Channel estimation algorithms based on DFT for Orthogonal Frequency Division Multiplexing system |
| 投稿时间：2012-02-14 |
| 中文摘要: |
| 信道估计作为OFDM通信系统中的重要部分，其性能关系到整个系统的误比特率。本文提出了一种基于DFT时域插值的信道估计改进方法，用于OFDM水声通信系统。该方法利用噪声门限抑制多径之间的信道估计噪声，计算简单，达到较好的信道估计效果。对该方法进行了理论分析，仿真实验以及海试。在海试中得到传输距离2 km，有效数据率2.8 kbit/s，证明该方法可以用于中短程浅海水声通信。 |
| 英文摘要: |
| A channel estimation algorithm for Orthogonal Frequency Division Multiplexing (OFDM) acoustic communication system is proposed. The algorithm is based on discrete Fourier transform (DFT). The algorithm is computational efficient. Theoretical analysis, computer simulation, and a sea trial have been finished. The system achieved a 2.8 kbit/s effective data rate at distances up to 2 km, which proved the algorithm can be used for middle/short range acoustic communication in shallow sea. |
| DOI：10.11684/j.issn.1000-310X.2012.05.006 |
| 中文关键词: 正交频分复用，水声通信，信道估计，海试 |
| 英文关键词: Orthogonal frequency division multiplexing, Acoustic communication, Channel estimation algorithms, Sea trial |
| 基金项目: |
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