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(メモ)標本化 量子化 符号化

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A/D変換について 忘れるので記載

標本化

一次的な自然情報を機器により採取( サンプリング )する
= アナログ信号

量子化

生のアナログ信号だとデータが大きすぎるため、データ丸め、数値化する
ex. 3.4 -> 3.0
アナログ信号の数値化 = デジタル信号

符号化

デジタル信号を 2進符号(バイナリ) に変換し、コンピュータで処理しやすくする

image.png
(引用:https://joho-taisaku.com/encoding/ )

参考

みたらとりあえず記載
https://joho-taisaku.com/encoding/

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