文章摘要
邓红超,蔡惠智,胡捍英.一种低复杂度的正交频分复用水声信道估计方法[J].声学技术,2006,(5):393~396
一种低复杂度的正交频分复用水声信道估计方法
Low-complexity channel estimation in high speed OFDM underwater acoustic communication
投稿时间:2005-10-28  修订日期:2006-02-23
DOI:
中文关键词: 水声通信  正交频分复用  信道估计  广义平稳非相关散射
英文关键词: underwater acoustic  OFDM  channel estimation  wide-sense stationary uncorrelated scattering
基金项目:国家“863”基金(863-818-09-09);“十五”国防预研基金(10106050302)项目
作者单位
邓红超 中国科学院声学研究所, 北京, 100080
解放军信息工程大学通信工程系, 郑州, 450002 
蔡惠智 中国科学院声学研究所, 北京, 100080 
胡捍英 解放军信息工程大学通信工程系, 郑州, 450002 
摘要点击次数: 621
全文下载次数: 598
中文摘要:
      高可靠性、低复杂度的信道估计是实现正交频分复用(OFDM)数据通信的必要前提。由于水声信道是时间、频率高度散射的信道,传统的基于维纳滤波的信道估计复杂度过高,参考无线信道的广义平稳非相关散射(WSSUS)模型,本文提出了一种基于最小均方误差(MMSE)准则的低复杂度OFDM水声信道估计方案,其运算复杂度明显降低,并被实际实验证明是可行、有效的。
英文摘要:
      Underwater acoustic environment is a particularly hostile communication channel with severe time and frequency selectivity.In order to achieve reliable OFDM communications,reliable and low-complexity channel estimation is necessary.However conventional estimate schemes based on Winner filter are complicated.This paper proposes a low-complexity channel estimation using mini-mum mean-squared error(MMSE) principle under the assumption of underwater acoustic wide-sense stationary uncorrelated scattering(WSSUS) channel model.The computational complexity is much lower.It is applicable in practical lake experiments.
查看全文   查看/发表评论  下载PDF阅读器
关闭
function PdfOpen(url){ var win="toolbar=no,location=no,directories=no,status=yes,menubar=yes,scrollbars=yes,resizable=yes"; window.open(url,"",win); } function openWin(url,w,h){ var win="toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=" + w + ",height=" + h; controlWindow=window.open(url,"",win); } &et=C334F362A9C8F5DE524AE3F879675AF5E3B595BB7379B541DFF8F82E0D47C8D948686BB8006646593EB922CABE816166A356B94E25753AB33D97AB3BBCB85865D42E4F304E8C2B76E037745431C8AEC1CC71F023A9C86E88&pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=DDCFCD5ACE1B1E5A6D46213553C850CA&yid=37904DC365DD7266&aid=&vid=&iid=94C357A881DFC066&sid=23F20F9780C3579E&eid=7D6CD8918B045FD4&fileno=20060501&flag=1&is_more=0">