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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Fraser Filter ： ウィキペディア英語版 Fraser Filter A Fraser Filter, named after Douglas Fraser, is typically used in geophysics when displaying VLF data. It is effectively the first derivative of the data. If $f(i)\; =\; f\_i$ represents the collected data then $average\_=\backslash frac$ is the average of two values. Consider this value to be plotted between point 1 and point 2 and do the same with points 3 and 4: $average\_=\backslash frac$ If $\backslash Delta\; x$ represents the space between each station along the line then $\backslash frac\}=\backslash frac$ is the Fraser Filter of those four values. Since $4\; \backslash Delta\; x$ is constant, it can be ignored and the Fraser Filter considered to be $(f\_1\; +\; f\_2)-(f\_3\; +\; f\_4)$. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fraser Filter」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.