サンプリング定てい理り

noun

sampling theorem

A fundamental theorem in signal processing stating that a continuous signal can be perfectly reconstructed from its samples if the sampling frequency is greater than twice the highest frequency component of the signal. Also known as the Nyquist–Shannon sampling theorem.

• サンプリング定てい理りによれば、元もとの信しん号ごうを復ふく元げんするには標ひょう本ほん化か周しゅう波は数すうを信しん号ごうの最さい高こう周しゅう波は数すうの2倍ばい以い上じょうにする必ひつ要ようがある。

  According to the sampling theorem, to reconstruct the original signal, the sampling frequency must be at least twice the highest frequency of the signal.