Explore MATLAB source code curated for "信噪比" with clean implementations, documentation, and examples.
Contains two MATLAB programs for speech enhancement: one for adding white Gaussian noise to clean speech files (WAV) with customizable SNR levels, and another for measuring speech signal-to-noise ratio to evaluate enhancement performance.
MATLAB simulation code for analyzing the effect of varying SNR conditions on Bit Error Rate performance in OFDM systems
Detection performance curves across varying signal-to-noise ratios (SNR), with SNR on the x-axis and detection probability on the y-axis. The curves demonstrate improved detection probability as SNR increases, which can be implemented using ROC curve analysis or threshold-based detection algorithms in MATLAB or Python.
Simulation and performance analysis of Alamouti space-time coded MIMO systems with 2×2, 4×4, and 6×6 antenna configurations in MATLAB platform, including BER vs SNR performance curve comparison with implementation details of coding schemes and signal detection algorithms.
This document explains the working mechanism of convolutional coding and decoding, accompanied by a Simulink simulation demonstrating convolutional encoding and Viterbi algorithm-based decoding. All encoding/decoding modules are implemented using custom S-Functions. The simulation evaluates Bit Error Rate (BER) versus Signal-to-Noise Ratio (SNR) in Additive White Gaussian Noise (AWGN) channels, including implementation details for finite-state machine handling, branch metric calculation, and trellis path tracing.
LCMV - Array Signal Processing with user-configurable signal-to-noise ratio input
Implementation of Chau Yuen's unitary space-time coding routine analyzing BER and SER performance across varying SNR levels under Rayleigh fading channel with 4x1 MIMO configuration
This program implements the LCMV (Linearly Constrained Minimum Variance) algorithm for antenna array beamforming, featuring BER (Bit Error Rate) curve analysis that demonstrates significantly reduced error rates under high SNR conditions. The implementation includes MATLAB-based constraint optimization and covariance matrix computations.
Implementation of link-level simulation for cooperative relay systems including Signal-to-Noise Ratio (SNR), Bit Error Rate (BER), and BER performance analysis with MATLAB-based simulation approaches.
This program computes MIMO channel capacity with simple implementations, generating plots for antenna configurations and SNR relationships. Ideal for graduation projects with expandable framework for advanced algorithms.