zengqiang

该程序模拟了降落伞的下降过程，其结果对于类似问题有借鉴作用。(The program simulates a parachute drop in the process, the results serve as a reference for similar problems.)

讲用MATLAB画三维图像的，很实用。我想对大家肯定会很用(About three-dimensional image drawn by MATLAB, and very practical. I want to I am sure you will be using)

求解Lambert问题。 输入：轨道上两个点的位矢R1、R2，以及从R1到R2所用的时间t(缺点是脉冲太大)。 输出：质点在R1端点的速度V1，质点在R2端点的速度V2. 此函数用于：在给定轨道上两个点的位矢R1、R2，以及从R1到R2所用的时间t。求解V1、V2。再调用前面的函数就可以确定轨道根数，及任意时刻质点的状态。(To solve the Lambert problem. Input: track two-point position vector R1, R2, and R1 to R2 used in the time t (The disadvantage is that the pulse is too large). Output: particle R1 endpoint speed V1, the particle in the R2 endpoint speed V2. This function is used: two points in a given orbit position vector R1, R2, and from R1 to R2 with the time t. Solve the V1 and V2. And then call the previous function can determine the orbital elements, and any moment of the particle' s state.)

ofdm正交频分复用中六种时间同步算法,时间同步很重要。(ofdm the six time synchronization algorithm ofdm of six time synchronization algorithm)

水平集方法和动态抽象表面，英文版的，需要的话相信不用翻译(level set methods and dynamic implicit surfaces)

海伦公式的学习程序 , matlab程序(Helen formulas learning program, matlab program)

matlab library to laplician pyramids

运用matlab编程实现PCA主成分分析算法(Principle component analysis)

rgb颜色空间-hsv颜色空间 (RGB to HSV)

returns the Jacobian for the position of an SPFA