noun
Fourier analysis
Mathematical technique for decomposing a function or signal into its frequency components.
フーリエ解析は信号処理の基礎です。
Fourier analysis is fundamental to signal processing.
この波形をフーリエ解析すると、複数の周波数成分が現れる。
When you perform Fourier analysis on this waveform, multiple frequency components appear.