映像情報メディア学会誌
Online ISSN : 1881-6908
Print ISSN : 1342-6907
ISSN-L : 1342-6907
論文
地上波デジタル放送の遅延プロファイル測定における時間分解能向上のための複数チャネル連結方式に関する検討
中村 聡生天目 翔大野 光平太田 弘毅伊丹 誠
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ジャーナル フリー

2013 年 67 巻 6 号 p. J194-J203

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In Japanese digital terrestrial television broadcasting (DTTB), the identification of multi-path is important to improve its reception characteristics. To enhance the resolution of the delay profile, connecting continuous multiple channels and the extended frequency bandwidth are effective. However, the guard band is existing between each channel and the transfer function is not obtained directly. The phases of each channel are not synchronized because the each channel is broadcasted independently. In this paper, a method to connect multiple channels is proposed. Interpolation of the guard band by using the liner adaptive predictor based on the RLS algorithm and compensation of phase between adjacent channels are performed. As a result, it is confirmed that resolution enhancement of the delay profile is possible. It is possible to improve the time resolution of the delay profile to below 0.024[μs].

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© 2013 一般社団法人 映像情報メディア学会
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