功率谱密度 Resources

Showing items tagged with "功率谱密度"

This program simulates power spectral density for educational purposes, featuring implementation details using signal processing algorithms suitable for technical analysis and research applications.

MATLAB 210 views Tagged

MATLAB implementation for analyzing power spectral density and constellation diagrams of QPSK modulation using rectangular and root raised cosine pulses across various signal-to-noise ratio (SNR) channels. The code includes pulse shaping techniques, modulation/demodulation algorithms, and SNR simulation modules. Simply execute the main function to generate all results.

MATLAB 299 views Tagged

This program performs power spectral density simulation comparisons using three signal sources described in "Introduction to Modern Digital Signal Processing" Volume 1, Page 202, Exercise 5. The implementation employs three spectral estimation methods: Periodogram method, Autocorrelation method, and Covariance method, with MATLAB code demonstrating different algorithmic approaches for spectrum analysis.

MATLAB 262 views Tagged

Extraction of seven instantaneous information-based signal features implemented through MATLAB algorithms: maximum value of zero-centered normalized instantaneous amplitude power spectral density, standard deviation of zero-centered normalized instantaneous amplitude absolute value, standard deviation of absolute value of instantaneous phase nonlinear components for zero-centered non-weak signal segments, standard deviation of instantaneous phase nonlinear components for zero-centered non-weak signal segments, standard deviation of absolute value of instantaneous frequency for zero-centered normalized non-weak signal segments, maximum value of normalized instantaneous frequency power spectral density for a signal segment, and feature parameters derived from distinct XI-axis projection characteristics of QPSK and 16QAM signals.

MATLAB 251 views Tagged