Computing Power Spectrum of Periodic Signals Using DFT Method

Implementation of discrete Fourier transform (DFT) for calculating power spectrum of periodic signals, with detailed analysis of spectral amplitude characteristics using code-based approach.

Extracting Periodic Signals from Audio-Frequency Analog Strong Noise Random Signals

Processing an analog strong noise random signal within audio frequency range (containing strong noise + periodic signal) to extract the target signal, with calculations of mean, average power, variance, frequency spectrum, power spectral density, and cross-correlation for both original and extracted signals, accompanied by graphical visualizations.