Fast Fourier Transform (FFT) Through GUI

FFT Through GUI

The MATLAB GUI program for the Fast Fourier Transform (FFT) provides a user-friendly interface to analyze discrete-time signals in both the time and frequency domains. The user enters a signal sequence into the input text box, and upon clicking the Compute FFT button, the program calculates the FFT using MATLAB's built-in fft() function. It then displays the original input signal, the magnitude spectrum, and the phase spectrum using graphical plots, while also presenting the numerical FFT results including the real part, imaginary part, magnitude, and phase values in a dedicated output text box. The GUI also includes Clear and Exit buttons for ease of operation. This interactive application helps students understand the transformation of signals from the time domain to the frequency domain, making it an effective educational tool for Digital Signal Processing (DSP) laboratories and classroom demonstrations.