Doppler Effect in Multipath Transmission over Rayleigh Channels

This MATLAB program implements Doppler effect simulation for multipath transmission in Rayleigh fading channels. The Rayleigh channel model represents a common wireless communication scenario where signals propagate through multiple paths. The Doppler effect occurs when signal frequency shifts due to relative motion between transmitter and receiver across different transmission paths. This simulation generates multiple independent Rayleigh fading paths using filtered Gaussian noise and implements Doppler spread calculation through frequency domain processing. Key functions include channel coefficient generation, path delay implementation, and Doppler spectrum analysis. The program's objective is to simulate multipath transmission in Rayleigh channels and compute Doppler effects, providing better understanding and research capabilities for wireless communication signal transmission characteristics. The implementation features configurable parameters for path numbers, Doppler frequencies, and delay profiles to analyze various communication scenarios.