Fourier Transforms The Fourier transform(FT) is a mathematical technique for converting time domain data to frequency domain data, and vice versa The Fourier transform will be explained in detail in later Chapters Time 可 FrequencyFourier Transforms The Fourier transform (FT) is a mathematical technique for converting time domain data to frequency domain data, and vice versa. The Fourier transform will be explained in detail in later Chapters