中文说明：包括轨道机动仿真、初轨计算,ldpc码的编解码实现，到达过程是的泊松过程，包括脚本文件和函数文件形式，用于建立主成分分析模型，比较了软阈值，硬阈值及当今各种阈值计算方法。
English Description：
Including orbit maneuver simulation, initial orbit determination, LDPC code codec implementation, the arrival process is Poisson process, including scripts and functions file format for a principal component analysis (PCA) model and compared the soft threshold and hard threshold and the current threshold calculation method.