这是我们现代通信原理课程设计时所写的一个关于模拟信号的调频（FM）、双边带调幅（DSB）程序，里面还有详细的报告。-This is our modern communication principles course design of a written about analog signals (FM), the frequency modulation (DSB) with bilateral program, with detailed report.

基于Matlab/Simulink建立的变压器仿真模型，模型是一个具有双侧电源及三相双绕组变压器的简单电力系统，可以用来分别仿真变压器保护区内部故障和外部故障。-Based on MATLAB/Simulink to build the simulation model of the transformer, the model is a bilateral power and three-phase double winding transformer of power system can