自相关函数 Resources

Showing items tagged with "自相关函数"

Time domain processing techniques for speech signals, including short-time energy, short-time average magnitude, short-time zero-crossing rate, and short-time autocorrelation function analysis methods.

MATLAB 254 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 184 views Tagged

Analysis routines for several BOC signals, with code implementation details for GNSS applications. As Global Navigation Satellite Systems increasingly adopt BOC modulated signals for spread-spectrum ranging, these routines address the challenge of multiple correlation peaks in BOC autocorrelation functions that prevent traditional delay lock loops (DLL) from accurately estimating code phase.

MATLAB 186 views Tagged