MATLAB Program for Autocorrelation Function Estimation (Direct Method and FFT Method), Signal Frequency Estimation, and Power Spectrum Analysis
This MATLAB program implements comprehensive signal processing techniques including autocorrelation function estimation using both direct computation and FFT-based methods, signal frequency estimation through advanced algorithms (MUSIC, ROOTMUSIC, ESPRIT, and MVDR), and power spectrum estimation employing Levinson-Durbin recursion, Blackman-Tukey method, and periodogram approach. The implementation includes comparative simulation plots and detailed code explanations for algorithm verification and performance analysis.