MATLAB Code Implementation for Voice Activity Detection Using Cepstrum Method
A voice activity detection program that utilizes cepstral analysis methodology for effective speech signal endpoint detection with reliable performance
Simulating the Entire Process of FH Frequency-Hopping Communication Systems
Simulation of the complete workflow of FH frequency-hopping communication systems, including observable operating principles and signal characteristics with code-driven analysis
M-Sequence Generator
M-Sequence Generator and its autocorrelation properties, including rectangular pulse signals formed by M-sequences and sinc-shaped M-sequence autocorrelation analysis
OFDM Wireless Channel Estimation Program
A comprehensive OFDM wireless channel estimation program featuring pilot insertion, signal generation, Least Squares (LS) and Linear Minimum Mean Square Error (LMMSE) estimation algorithms. The implementation includes serial-to-parallel conversion, QPSK modulation, training signal integration, channel simulation, and channel reception processes.
Calculating Signal-to-Noise Ratio After Denoising
Calculating the Signal-to-Noise Ratio After Denoising - Shared for Collective Discussion and Technical Implementation Approaches
MATLAB Implementation of Differential Encoding
A differential encoding subroutine that processes signals through difference encoding prior to modulation, featuring code implementation with logical XOR operations and state management.
Peak Detection Program for Identifying Maximum Values in Signal Sets
This program implements peak detection algorithms to identify maximum values within signal datasets, featuring signal acquisition, filtering, and peak calculation procedures.
MATLAB-based GPS Signal Acquisition Program
Application Context: GPS technology is extensively utilized across daily life, scientific research, and industrial applications. This program performs GPS signal acquisition and satellite searching by determining visible satellite PRN numbers, Doppler frequency shifts, and initial code phases. The results obtained can be further utilized for signal tracking and navigation solution computation. Key Technologies: ca_repeat.m generates sampled sequences of specified C/A codes, CAENCODE.m produces C/A code sequences, findmax.m identifies peak values in correlation results, and GPSAcq.m serves as the main acquisition function. The program allows customization of GPS signal parameters including frequency points, intermediate frequency, and sampling rate during initialization. The code package includes real GPS datasets for practical testing and validation.
Wavelet Modulus Maxima Denoising Algorithm Implementation
This program implements a wavelet modulus maxima-based denoising algorithm that effectively removes impulse noise from signals through multi-scale wavelet decomposition and threshold-based reconstruction.
Directional Pattern of ULA1 Antenna Array
ULA1 antenna array directional pattern for signal direction-of-arrival (DOA) estimation. Features four advanced DOA estimation algorithms: MUSIC (Multiple Signal Classification), MN-MUSIC, Capon (Minimum Variance Distortionless Response), and ESPRIT (Estimation of Signal Parameters via Rotational Invariance Techniques). This package implements comprehensive signal source localization suitable for communication and radar applications.