解ABCD的四元方程求解ABCD的值，并通过此值计算出电力器件vto，rt的值，从而使并联器件变得简单，有效-Solution ABCD equation solving the value of the ABCD and power devices VTO rt value calculated by this value, so that the the parallel device becomes simple, effective

C++求解矩阵的广义逆，已经和MATLAB的计算结果对比过，完全一致、-code to get generalized inverse matrix

matlab代码读取O文件和N文件,计算GPS卫星位置，然后输出-matlab code ,read O file and N file，caculate GPS position and print out.