SIMULINK Simulation of FSK Modulation with Complete Parameter Configuration

This document explores the SIMULINK simulation and comprehensive parameter configuration for Frequency Shift Keying (FSK) modulation. We begin by detailing the fundamental principles and operational mechanisms of FSK modulation, including its digital implementation where binary data controls frequency transitions between predefined values. Subsequently, we employ SIMULINK software to construct a simulation model, incorporating key blocks such as the Bernoulli Binary Generator for data source, Baseband Modulator for FSK implementation, and AWGN Channel for noise introduction. The simulation validates the modulation scheme's performance metrics like bit error rate (BER) and spectral efficiency. During simulation setup, we comprehensively configure parameters including modulation index (defining frequency separation), carrier frequency (central oscillation reference), and symbol rate (data transmission speed). These parameters critically impact system performance and transmission quality; thus, we methodically discuss selection criteria and adjustment techniques—such as using MATLAB's Communication Toolbox functions like fskmod() for algorithmic parameter optimization—to achieve optimal modulation outcomes. Finally, we analyze simulation results through scope visualizations and BER calculators, evaluating FSK's robustness against noise and its application potential in wireless communication systems. This document provides complete guidance for FSK modulation simulation and parameter tuning, offering substantial support for research and practical implementations.