傅立叶变换 fùlìyèbiànhuàn Fourier transform Origin Definitions Defs Strokes Stroke Words Sentences Sents 傅立叶 傅立葉 fùlìyè Joseph Fourier Jean-Baptiste Joseph Fourier (1768–1830), French mathematician and physicist, known for Fourier series and Fourier transforms变换 變換 biànhuàn transformation The act or process of converting or changing; a conversion