文章基本信息

标题：ISDB-T用アダプティブアレーの開発
本地全文：下载
作者：竹内知明 ; 木村智 ; 濱住啓之等
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2006
卷号：60
期号：1
页码：66-75
DOI：10.3169/itej.60.66
出版社：The Institute of Image Information and Television Engineers
摘要：While relaying broadcast waves of digital terrestrial broadcasting, the transmission-signal quality becomes degraded along the propagation path and must be improved at the relay station. However, we must give special consideration to co-channel interfernece because the relay station is usually located at a place that has a high probability of receiving undesirable broadcast waves. This paper describes a co-channel interference canceler which uses the MMSE adaptive array for the digital broadcast wave relay station. In the proposed scheme, the scattered pilot is used as a reference signal to minimize errors which is defined as the difference between the known symbol and the combined one. The received data symbols are combined in each subcarrier based on interpolated optimal weights, thus canceling the interference. Numerical examples and indoor experimental results are presented in this paper to verify the effectiveness of the proposed scheme.
关键词：同一チャネル干渉;アダプティブアレー;スキャッタードパイロットOFDM;MMSE;放送波中継;ISDB-T