フーリエ展てん開かいMeanings1nounFourier expansionmathematicsMathematical term for expressing a function as a sum of sinusoidal components.フーリエ展てん開かいを用もちいて信しん号ごうを周しゅう波は数すう成せい分ぶんに分ぶん解かいする。Decompose the signal into frequency components using Fourier expansion.
