中文说明：使用大量的有限元法求解偏微分方程，PLS部分最小二乘工具箱,IMC-PID是利用内模控制原理来对PID参数进行计算，合成孔径雷达（SAR)目标成像仿真，本程序的性能已经超过其他算法，对于初学者具有参考意义。
English Description：
Use a large number of finite element method for solving partial differential equations, pls pls toolbox, IMC-PID is by using the internal model control theory is used to calculate the parameters of PID, synthetic aperture radar (SAR) target imaging simulation, the performance of the program has more than other algorithms, for a beginner has reference significance.