大地坐标系统的变换，主要适用于GPS学习者和大地测量者学习大地坐标系转换有关理论知识。-geodetic coordinate system conversion, mainly applicable to learners and GPS geodesy learning earth coordinate system conversion of the theoretical knowledge.

matlab编写的轨道坐标系变换程序 地心直角坐标系与轨道参数互换-Matlab prepare the track coordinates transform procedures geocentric Cartesian coordinate system with the orbital parameters swap

采用幅值恒等原则建立的三相到两相静止坐标系和两相静止坐标系到三相坐标系的变换-Constant amplitude using the principles established by the three-phase to two-phase stationary coordinate system and the two-phase stationary coordinate system to transform the three-phase coordinate system