"基于MATLAB的CDMA通信系统仿真与分析"

Based on the document "Analysis and Simulation of CDMA Communication System based on Matlab", a comprehensive CDMA communication system was designed and implemented using Matlab and Simulink. The end-to-end modeling, simulation, and analysis of the CDMA wireless communication system were successfully completed. The key aspects of CDMA, such as spreading technology, power control technology, modulation technology, and channels, were discussed along with parameter settings. It was observed that in different channel environments, noise interference significantly affects the system performance, with higher noise power resulting in a higher error rate. In multi-user simulations in the same channel environment with noise power, the error rate increased with the number of users due to interference. In addition to channel noise, other interferences such as multiple access interference, single frequency interference, narrowband interference, and tracking interference were also present during signal transmission. The primary interference was found to be multiple access interference. The study highlights the importance of visualizing and simulating CDMA communication systems using Matlab to analyze the impact of various parameters and interferences on system performance. Keywords: CDMA; Communication System; Visualization Simulation; Matlab; Simulink.