Simulink Simulation Programs for Communication System Modulation

This document provides detailed descriptions of Simulink simulation programs for communication system modulation. The simulations cover various modulation techniques including AM-DSB (Amplitude Modulation Double Sideband), SSB (Single Sideband), FM (Frequency Modulation), GMSK (Gaussian Minimum Shift Keying), FSK (Frequency Shift Keying), OQPSK (Offset Quadrature Phase Shift Keying), and PM (Phase Modulation). These Simulink models utilize built-in blocks like Sine Wave generators, Product blocks for modulation, and Spectrum Analyzers for frequency domain analysis. The simulations demonstrate key implementation aspects such as carrier signal generation, message signal processing, modulation index configuration, and filter design for sideband suppression. Through these Simulink simulation programs, users can effectively analyze and understand the working principles and characteristics of communication system modulation techniques, including time-domain waveform observation, spectral analysis, and bit error rate performance evaluation.