Simulation of Rayleigh Channels
Rayleigh channel simulation in wireless communications, incorporating Doppler shift effects, signal modulation schemes, and channel coding techniques with MATLAB implementation examples
Doppler Shift Causes Aliasing in Wireless Channel Output Signals
(1) In certain wireless channels, Doppler shift can cause aliasing in the output signals. This document analyzes various causes of aliasing and explains the mechanism behind the classic Doppler spectrum. (2) The implementation details include creating a single-path Rayleigh channel with Simulink using S-Function, configured for 120 km/h velocity with classic Doppler spectrum. (3) Validation methods using spectral analysis tools and theoretical comparisons are discussed to verify the generated spectrum's correctness.
Simulation of Matched Filters with Doppler Frequency Shift Mismatch and High-Frequency Matching Considerations
Simulation study on matched filter performance under Doppler frequency shift mismatch conditions, including high-frequency matching degree analysis and implementation approaches using signal processing algorithms.
Doppler Shift Estimation in Low Earth Orbit (LEO) Satellite Communication Systems
Doppler shift estimation for LEO satellite communication systems - this program generates S-curve plots of Doppler shift, enabling observation of maximum Doppler frequency shift and its rate of change, with implementation demonstrating satellite trajectory modeling and frequency compensation algorithms
OFDM Simulation with Multipath Effects in Channel Transmission
OFDM simulation program addressing multipath effects, Doppler frequency shift, and delay spread in channel transmission, including numerical modeling approaches
Comprehensive Structure of OFDM Systems
Complete OFDM system architecture including up/down conversion, Doppler shift compensation, constellation modulation techniques, and system parameter calculations with implementation insights.
Simulation of Multipath Channels with Code Implementation
This simulation processes input symbols represented as row matrices containing real or complex values with symbol rate %fs. The model incorporates Doppler shift %fd and characterizes multipath propagation using %n_delay paths with specified delay times %t_delay and power values in dB %p_delay for each path. The implementation typically involves convolution operations with channel impulse response and Doppler effect modeling.
Simulation Models for Multipath Channels, Doppler Shift, Rayleigh and Rician Channels with QPSK Modulation/Demodulation and Interleaving Coding
This collection includes simulation implementations for multipath channels, Doppler shift effects, Rayleigh and Rician channel models, along with QPSK modulation/demodulation and interleaving coding techniques. All programs have been thoroughly tested and verified as functional, accompanied by detailed test documentation and simulation graphical results demonstrating channel characteristics and signal processing performance.
Maximum Likelihood Synchronization Algorithm for OFDM Systems
Implementation of Maximum Likelihood (ML) synchronization algorithm for OFDM systems with Rayleigh fading channel model incorporating Doppler frequency shift
Plotting Ambiguity Function of BPSK Barker Code with Time-Frequency Conversion
Implementation of ambiguity function plotting for BPSK Barker codes using time-frequency conversion method, including time-delay (τ) cross-sections, Doppler frequency shift (fd) cross-sections, and ambiguity diagram visualization techniques with MATLAB code examples.