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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 ZOH ： ウィキペディア英語版 Zero-order hold The zero-order hold (ZOH) is a mathematical model of the practical signal reconstruction done by a conventional digital-to-analog converter (DAC). That is, it describes the effect of converting a discrete-time signal to a continuous-time signal by holding each sample value for one sample interval. It has several applications in electrical communication. ==Time-domain model== A zero-order hold reconstructs the following continuous-time waveform from a sample sequence ''x''(), assuming one sample per time interval ''T'': :$x\_^\; x()\backslash cdot\; \backslash mathrm\; \backslash left(\backslash frac\; \backslash right)\; \backslash$ :where $\backslash mathrm()\; \backslash$ is the rectangular function. The function $\backslash mathrm\; \backslash left(\backslash frac\; \backslash right)$ is depicted in Figure 1, and $x\_\{\backslash mathrm\{ZOH\}\}(t)\backslash ,$ is the piecewise-constant signal depicted in Figure 2. 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「Zero-order hold」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.