"基于MATLAB SIMULINK的FM调制解调仿真及设计"

In the field of communication systems, the process of transmitting information involves generating electrical signals from an analog source and modulating them to adapt the low-pass frequency spectrum onto a carrier frequency for transmission through a channel. This process also includes the demodulation of the received signal to recover the original information. The document "FM Modulation and Demodulation Explanation based on MATLAB SIMULINK" explores the use of frequency modulation to generate modulated signals and demonstrates the modulation and demodulation process with the help of SIMULINK toolbox. The study focuses on understanding and utilizing the SIMULINK toolbox to simulate and analyze FM signals. By leveraging the extensive templates provided within the toolbox and applying knowledge of communication principles, the researchers successfully completed the modulation and demodulation of FM signals, as well as designed and simulated them using SIMULINK. The initial step involved using a simple sinusoidal wave signal generator as the source to simulate the principles of FM modulation and demodulation. Key terms discussed in the document include modulation and demodulation, frequency modulation (FM), MATLAB, and SIMULINK simulation. The research conducted at Wuhan University of Technology highlights the practical applications of signal analysis and processing in the field of communication systems. Through this study, the researchers gained insights into the importance of modulation techniques in transmitting information efficiently and accurately through communication channels. The use of MATLAB SIMULINK proved to be a valuable tool in designing and simulating communication systems, providing a platform for students and researchers to experiment with various modulation techniques and gain practical experience in signal processing.