送電線用ディジタル電力線搬送方式における適応等化器

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2014/02/01

タイトル(英語): Adaptive Equalizer for Digital Power Line Carrier Systems

著者名: 佐々木　範雄（東北電力（株）研究開発センター），花海　丞（通研電気工業（株）），織田　健志（通研電気工業（株）），安達　文幸（東北大学）

著者名(英語): Norio Sasaki (Tohoku Electric Power Co., Inc.), Tasuku Hanaumi (Tsuken Electric Industrial Co., Ltd.), Takeshi Oda (Tsuken Electric Industrial Co., Ltd.), Fumiyuki Adachi (Tohoku University)

キーワード: 送電線，電力線搬送，ディジタル伝送，適応等化器　　Power line transmission，Power line carrier，Digital transmission，Adaptive equalizer

要約(英語): In this paper, we propose a transversal adaptive equalizer using the least mean squares (LMS) algorithm for digital power line carrier systems and discuss about the optimal number of taps, the step size parameters, and the achievable bit error rate (BER) performance. First, we present two power line models: Model 1 with a line trap on the power line branch and Model 2 without a line trap on the branch. Then, we present theoretical analysis and the computer simulation results. In the case of Model 1, the sufficient number of taps is around 12, while in the case of Model 2, it increases to 21. This is because a line trap in the case of Model 1 can suppress the electric energy of the delay path. It is desirable to change the step size parameter μ in the training and tracking modes in order to achieve fast mean square error (MSE) convergence rate and a good BER performance; i.e., a relatively large value of μ=0.01 should be used in the training mode while a small value of μ=0.001 should be used in the tracking mode.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.134 No.2 （2014） 特集：知覚情報技術の最前線

本誌掲載ページ: 258-266 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/134/2/134_258/_article/-char/ja/