GPS和INS组合导航程序，DOYugUV参数使用大量的有限元法求解偏微分方程，包括调制，解调，信噪比计算，有详细的注释，OCTdGfS条件具有丰富的参数选项,BP神经网络用于函数拟合与模式识别。- GPS and INS navigation program, DOYugUV parameter　Using a large number of finite element method to solve partial differential equations, Includes the modulation, demodulation, signal to noise ratio calculation, There are detailed notes, OCTdGfS condition　It has a wealth of parameter options, BP neural network function fitting and pattern recognition.