本课程设计主要是利用MATLAB集成环境下的Simulink仿真平台,设计一个2ASK调制与解调系统。用示波器观察调制前后的信号波形；用频谱分析模块观察调制前后信号频谱的变化；加上各种噪声源,用误码测试模块测量误码率；最后根据运行结果和波形来分析该系统性能。文中还介绍了基于MATLAB 如何实现2ASK 调制解调的系统仿真。-This course is designed mainly using MATLAB Simulink simulation platform integrated environment, the design of a 2ASK modulation and demodulation system. Modulated signal oscilloscope waveform before and after　changing module observed before and after the signal spectrum modulation using spectral analysis　plus a variety of noise sources, measuring the bit error rate test module with error　Finally, according to the results and waveform analysis of the system performance. The paper also describes how to implement 2ASK based modulation and demodulation MATLAB system simulation.