翻訳と辞書 |
Shift-invariant system : ウィキペディア英語版 | Shift-invariant system A shift invariant system is the discrete equivalent of a time-invariant system, defined such that if ''y''(''n'') is the response of the system to ''x''(''n''), then ''y''(''n''–''k'') is the response of the system to ''x''(''n''–''k'').〔Oppenheim, Schafer, 12〕 That is, in a shift-invariant system the contemporaneous response of the output variable to a given value of the input variable does not depend on when the input occurs; time shifts are irrelevant in this regard. ==Applications== Because digital systems need not be causal, some operations can be implemented in the digital domain that cannot be implemented using discrete analog components. Digital filters that require finite numbers of future values can be implemented while the analog counterparts cannot.
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「Shift-invariant system」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.
|
|