"基于MATLAB的扩频通信系统仿真"

xperimental results and the design of each module were discussed. Issues to be aware of in simulation modeling were also pointed out. Under the given simulation conditions, the simulation program was run and the expected results were obtained. Furthermore, the relationship between spread spectrum gain and output signal-to-noise ratio was investigated using the established simulation system. The results showed that increasing the spread spectrum gain can improve the system's output signal-to-noise ratio under the same bit error rate, thereby enhancing the system's anti-interference capability. Keywords: spread spectrum communication, signal-to-noise ratio, bit error rate Huanghe University of Science and Technology Graduation Thesis Title: Simulation of the Spread Spectrum Communication System Based on MATLAB Author: Guo Jian Advisor: Tang Hailing Abstract This thesis elucidates the theoretical foundation and implementation methods of spread spectrum communication technology. A simulation model of the spread spectrum communication system was constructed using SIMULINK, a visualization tool provided by MATLAB. The design of each module was detailed, and important considerations in simulation modeling were highlighted. Running the simulation program under the given conditions yielded the expected results. Additionally, the relationship between spread spectrum gain and output signal-to-noise ratio was studied using the established simulation system. The findings indicate that increasing the spread spectrum gain can enhance the system's output signal-to-noise ratio, thereby improving its anti-interference capability, while maintaining the same bit error rate. Keywords: spread spectrum communication, signal-to-noise ratio, bit error rate