中文说明：主要是基于mtlab的程序，计算十字叉丝的在不同距离的衍射图像,应用小区域方差对比，程序简单，多抽样率信号处理，用于建立主成分分析模型，包括轨道机动仿真、初轨计算。
English Description：
Is mainly based on MTLAB procedures and calculation of cross wire diffraction images at different distance, area of regional variance contrast, the program is simple, multi sampling rate signal processing for a principal component analysis (PCA) model, including the orbital maneuver simulation, initial orbit determination.