基于Simulink的通信系统仿真

Title: Simulation and Analysis of Communication Systems Based on Simulink Abstract: With the development of science and technology, computer simulation technology has become increasingly powerful, greatly saving manpower, material resources, and time costs, and playing a significant role in education, research, and production. This paper explores the excellent characteristics of various transmission methods of digital baseband communication systems, including ASK, FSK, PSK, and QPSK, and uses MATLAB's SIMULINK function to simulate and demonstrate the working process of digital communication systems. By analyzing the digital signals, it is concluded that QPSK is the best transmission method due to its strong anti-interference ability and simple signal generation. Therefore, QPSK is widely used in daily digital transmission. Keywords: digital communication system, Matlab, ASK, FSK, PSK, simulation.