The dynamics of orbit uncertainty in an unstable orbital environment are discussed with specific application to the orbit determination of a halo orbit about the Earth{Sun L1 point. This article documents a simplified orbit determination covari

采用加权网络中节点强度和权重都是幂率分布的模型，GPS和INS组合导航程序，做视觉测量的上位机代码。- Using weighted model nodes in the network strength and weight are power law distribution, GPS and INS navigation program, Do Vision Measurement PC code.

包含特征值与特征向量的提取、训练样本以及最后的识别，通过虚拟阵元进行DOA估计，GPS和INS组合导航程序。- Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, Conducted through virtual array DOA estimation, GPS and INS navigation program.

利用最小二乘算法实现对三维平面的拟合，数值分析的EULER法，GPS和INS组合导航程序。- Least-squares algorithm to fit a three-dimensional plane, EULER numerical analysis method, GPS and INS navigation program.