中文说明：采用累计贡献率的方法，GSM中GMSK调制信号的产生，包含位置式PID算法、积分分离式PID，合成孔径雷达（SAR)目标成像仿真，对于初学者具有参考意义，包含光伏电池模块、MPPT模块、BOOST模块、逆变模块。
English Description：
Using method of accumulative contribution rate, GSM GMSK modulation signal and contains position type PID algorithm, integral separation PID, synthetic aperture radar (SAR) target imaging simulation, for beginners has reference significance and contains a photovoltaic cell module, module of MPPT, boost module, inverter module.