The Fourier Analysis –The Fast Fourier Transform (FFT) Method

https://www.electronics-lab.com/article/the-fourier-analysis-the-fast-fourier-transform-fft-method/

Introduction The Fourier Transform is a mathematical technique that transforms a time-domain signal into its frequency-domain representation. In other words, it decomposes a signal into its frequency components. The result is called the spectrum of the signal. Historically, the Fourier analysis concept developed slowly, from the Fourier series method 200 years ago up to the Discrete Fourier Transform (DFT) computing method today. Essentially, the Fourier decomposition was […]