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  • 标题:マクロダイバーシティ受信システムの開発と移動中継番組での運用
  • 本地全文:下载
  • 作者:光山 和彦 ; 村上 文弘 ; 池田 哲臣
  • 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:2013
  • 卷号:67
  • 期号:1
  • 页码:J8-J15
  • DOI:10.3169/itej.67.J8
  • 出版社:The Institute of Image Information and Television Engineers
  • 摘要:We are conducting research on a wireless link system that is capable of achieving high link reliability over a wide area for use in mobile relay broadcast programs such as road races. For such systems to be feasible, we developed a macrodiversity reception system using many distributed remote antennas and radio-over-fiber links. Our receiver combines four diversity branches with good signal quality based on the minimum mean square error (MMSE) algorithm. We describe the MMSE weight vector calculation using fixed-point operation for hardware implementation, prototyping of a macrodiversity receiver, and its use in an actual mobile relay broadcast program. Our system was used as a terrestrial reception system of high-definition videos shot from a motorcycle in the Kyoto Ekiden relay race, and achieved highly stable transmission without outage for half the course.
  • 关键词:マクロダイバーシティ;OFDM-FPU;MMSE;ロードレース中継
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