功率谱估计 Resources

Showing items tagged with "功率谱估计"

MATLAB simulation code for power spectrum estimation using wavelet transform, featuring fundamental wavelet transform implementation, Mallat algorithm realization, and comparative simulations between classical and modern power spectrum estimation methods.

MATLAB 211 views Tagged

The correlation function method estimates the autocorrelation function R from sequences, then applies Fourier transform to obtain power spectrum estimation. This approach provides strong estimation accuracy when the time delay is relatively small compared to the data length. Implementation typically involves computing lagged products and applying FFT algorithms for efficient spectral analysis.

MATLAB 201 views Tagged

Implementation of power spectrum estimation for random signals through autocorrelation function and periodogram methods, with analysis of how data length, autocorrelation sequence length, signal-to-noise ratio, window functions, and averaging次数 affect spectral resolution, stability, main lobe width, and side lobe effects. Includes code implementation considerations for parameter optimization.

MATLAB 271 views Tagged