Fourier transform

英語（米国） (en-US) 英語（イギリス） (en-GB)

名詞

(mathematical analysis, harmonic analysis, physics, electrical engineering) A particular integral transform that when applied to a function of time (such as a signal), converts the function to one that plots the original function's frequency composition; the resultant function of such a conversion.

日本語の意味

フーリエ変換：時間領域の関数（例えば信号）を周波数領域の関数に変換し、元の関数の周波数成分を示す積分変換手法 / 数理解析、調和解析、物理学、電気工学などの分野で用いられる特定の積分変換 / 与えられた関数の各周波数成分の存在と大きさを明らかにする方法

英語の意味

(mathematical analysis, harmonic analysis, physics, electrical engineering) A particular integral transform that when applied to a function of time (such as a signal), converts the function to one that plots the original function's frequency composition; the resultant function of such a conversion.

このボタンはなに？

The engineers used the Fourier transform to analyze the signal's frequency content during the experiment.

技術者たちは実験中に信号を解析するために、時間領域の信号を周波数スペクトルに変換する積分変換（フーリエ変換）を用いた。

詳細

意味（1）

(mathematical analysis, harmonic analysis, physics, electrical engineering) A particular integral transform that when applied to a function of time (such as a signal), converts the function to one that plots the original function's frequency composition; the resultant function of such a conversion.

Fourier transforms are not limited to acting on functions of time, but the domain of the original function is commonly called the time domain.

詳細

Fourier transforms （ plural ）