频谱 Resources

Showing items tagged with "频谱"

The Non-Uniform Fourier Transform extends the traditional Fourier Transform, particularly suitable for processing non-uniformly sampled data or computing spectra at arbitrary frequencies. This implementation typically employs algorithms like the NUFFT (Non-Uniform Fast Fourier Transform) which uses interpolation techniques to map non-uniform data points to a uniform grid for efficient computation.

MATLAB 263 views Tagged

A self-developed digital equalizer implemented in MATLAB GUIDE environment. Supports playback of WAV audio files with 8-band equalizer adjustment, displaying original waveforms, frequency spectra, and processed waveforms/spectra. The compressed package includes 3 reference program reports for comparative study and implementation guidance.

MATLAB 261 views Tagged

MATLAB implementation for cognitive radio spectrum sensing using energy detection and cyclostationary detection algorithms. The cyclostationary detection process involves: first executing a.m to compute the cyclic frequency alpha value, then running zhouqi.m to validate the alpha value and perform signal detection using cyclostationary algorithms. For energy detection: execute nengliang.m to detect signals using energy-based methods. After detection, comprehensive performance analysis is conducted to evaluate detection accuracy and reliability.

MATLAB 300 views Tagged