Power Spectrum Estimation of Signals Using Fourier Transform
Various methods for power spectrum estimation via Fourier Transform: Periodogram method, Modified Periodogram with segmentation, Welch's method for reduced variance, Multitaper Method (MTM) using multiple orthogonal windows, Maximum Entropy Method (MEM) for high-resolution estimation, and Multiple Signal Classification (MUSIC) for frequency detection. Implementation approaches include FFT computation, windowing functions, and spectrum averaging techniques.