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基于gps卫星广播星历进行的卫星预报，涉及到站心坐标系的转换(Gps satellite broadcast on the satellite ephemeris prediction, involving the heart coordinate system conversion station)

规划与lingo入门教程，这些资料可以对读者有一定的帮助。请读者不要乱。(Planning and lingo introductory tutorial, these data will certainly help the reader. Readers are cautioned not chaos.)

掺5 MgO的PPLN晶体温度调谐曲线，泵浦光1064nm，周期为29.5,30,30.5,31,31.5um(5 MgO doped PPLN crystal temperature tuning curve of the pump laser 1064nm, period 29.5,30,30.5,31,31.5um)

说明：  本文提出一种平面度误差评定的最小条件快速精确算法。用此法可在不加任何人工判断的条件下,在计算机上求得最小条件平面度误差值(This paper presents a flatness error evaluation of the minimum conditions for fast and precise algorithm. Method can be judged without any artificial conditions, on the computer to achieve the minimum conditions for flatness error)

基于引导滤波的图像去雾代码，是何恺明博士主页上下载的(Guide the image of the filter to the fog code is downloaded on the home page of Dr. He Kaiming)

基于贝叶斯网络的小波阈值的图像的降噪，希望能对你们有一定的用处。(Bayesian network based on wavelet threshold image de-noising, hope to have some helpful to you)

i upload a matlab code which can calculate density of atmosphere and temperature in altitude of over 100 km

laplace elimination for soltion of linear system of equation

PID regulators in diferent form

　K-means算法是最为经典的基于划分的聚类方法，是十大经典数据挖掘算法之一。K-means算法的基本思想是：以空间中k个点为中心进行聚类，对最靠近他们的对象归类。通过迭代的方法，逐次更新各聚类中心的值，直至得到最好的聚类结果。(K-means algorithm is based on the division of the classic clustering method, is ten classic one of data mining algorithm. K-means the basic idea of the algorithm is: to the space K point as the center of the cluster analysis, near their object classification. Through the iterative method, each successive update clustering center value, until get the best clustering results. )