信号分解 Resources

Showing items tagged with "信号分解"

MATLAB code for Hilbert-Huang Transform featuring Empirical Mode Decomposition (EMD) implementation, thoroughly debugged and verified. Includes BMP output demonstrating runtime results. With parameter adjustments, enables multimodal decomposition for various signal types. Key features include signal sifting process, intrinsic mode function extraction, and instantaneous frequency analysis.

MATLAB 264 views Tagged

A wavelet packet-based bandpass filter design program featuring fast wavelet transform algorithms and reconstruction methods. The implementation demonstrates signal bandpass filtering through wavelet transforms, utilizing orthogonal wavelet packets to decompose complex-frequency signals into distinct frequency bands. The program enables targeted frequency extraction using wavelet packet decomposition coefficients, followed by signal reconstruction through inverse wavelet packet transforms to achieve precise frequency component isolation.

MATLAB 292 views Tagged

VMD transforms signal decomposition into a constrained variational optimization problem, adaptively separating signals into sums of multiple Intrinsic Mode Functions (IMFs) with robust noise resistance and precise bandwidth separation capabilities

MATLAB 394 views Tagged

Empirical Mode Decomposition (EMD) is an adaptive signal decomposition method primarily applied to nonlinear and non-stationary signals. Ensemble Empirical Mode Decomposition (EEMD) addresses the mode mixing problem inherent in standard EMD. Implementation typically involves iterative sifting processes using MATLAB's signal processing toolbox or Python libraries like PyEMD.

MATLAB 515 views Tagged