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MATLAB Bearing Fault Detection Using Envelope Demodulation Method

A bearing fault detection program implementing envelope demodulation technique to process vibration data and extract fault frequencies. The MATLAB code features configurable sampling frequency and data file selection, with detailed implementation of signal processing algorithms including Hilbert transform for envelope extraction and FFT-based frequency analysis. The package includes sample fault data with characteristic frequency of 107Hz for validation.

MATLAB 261 views Tagged

Frequency Domain Beamforming Simulation Diagram

Frequency Domain Beamforming Simulation Diagram with customizable parameters including sampling frequency and number of array elements for flexible algorithm testing

MATLAB 407 views Tagged

MATLAB Code Implementation for Bandpass Filtering

Bandpass filtering implementation that processes input data using a sampling frequency 16 times the actual frequency, including matrix operations and data transformation procedures with customizable conversion options

MATLAB 252 views Tagged

MATLAB Implementation of Bandpass Filter with Function-Based Approach

Implementation of a bandpass filter requiring configuration of half-order, high/low cutoff frequencies, and sampling frequency parameters, packaged as a reusable MATLAB function. The accompanying RAR file contains sample EMG signal data for testing.

MATLAB 242 views Tagged

Plotting Time-Domain Waveform of Linear Frequency Modulation Signal with MATLAB Implementation

Using MATLAB to generate and visualize linear frequency modulation signals in time-domain, performing spectral analysis, and investigating the impact of sampling frequency and signal-to-noise ratio on frequency spectrum characteristics.

MATLAB 276 views Tagged

MATLAB Code Implementation for Weibull-Distributed Sea Clutter Simulation

Function: This program simulates Weibull-distributed sea clutter for Chapter 4 of a research paper. Reference: Luo Junhui. "Application of MATLAB 7.0 in Digital Signal Processing". Electronic Industry Press, p174-176. Input parameters: Signal-to-Interference-plus-Noise Ratio (SINR), sampling frequency, scale parameter, and shape parameter. Output: Time-domain waveform and probability density plots of sea clutter. The implementation utilizes MATLAB's statistical functions for Weibull distribution generation and includes custom visualization code for analytical results.

MATLAB 195 views Tagged

MATLAB Implementation of Spectral Analysis with ZOOM-FFT Technique

In spectral analysis, the data length N and sampling frequency fs determine the frequency resolution df=fs/N. To enhance resolution, ZOOM-FFT is commonly employed. This article provides MATLAB code demonstrating how ZOOM-FFT refines spectral resolution through interpolation and resampling.

MATLAB 247 views Tagged

Rayleigh Fading Channel Simulation at Different Frequencies and Sampling Rates

This simulation program models Rayleigh fading channels under varying frequencies and sampling rates, providing essential tools for developing mobile communication systems with implementation insights on parameter configuration and channel modeling.

MATLAB 228 views Tagged

Calculating P-R Interval and ECG Parameters with Automated Feature Detection

Process ECG data files to plot waveforms, automatically mark characteristic points, and compute P-R intervals and other parameters. Includes implementation details for handling binary .dat files (2 bytes per sample, 1000Hz sampling) and parsing .hea header files for 12-lead sequencing information.

MATLAB 267 views Tagged

Recording and Analyzing Personal Voice Signals with MATLAB

This project involves recording a 15-30 second voice sample, processing it through MATLAB using functions like wavread and sound, and conducting comprehensive signal analysis including time-domain waveform plotting, power spectrum calculation at 1-second intervals, FIR/IIR filter design with frequency response visualization, signal filtering implementation, and time-frequency analysis with 0.05-second resolution.