fft

利用MATLAB进行仿真，对图像进行dct变换，探究变换后与原图像的差别(Using MATLAB simulation, the image dct transform, transform and explore the difference between the original image)

lfda,局部线性判别式分析，可解决多模型数据分布问题(lfda)

by Lilia Maliar & Fernando Valli & Seguei Maliar

this a very importantt tool to campare two couple of souds for example and can be used for a dissemblance test

Matlab进行再入式飞行器轨道建模与仿真，建立各种模型，最后获得飞行器的动力学模型，并调用龙格库塔函数求解该微分方程初值问题。(Matlab for reentry spacecraft orbit modeling and simulation, the establishment of various models, and finally obtain the dynamic model of the aircraft, and call the Runge-Kutta function of the initial value problem solving differential equations.)

计算矢量所在扇区的N模型，判断当前的扇区(calculating vector lies Sector N model, the current portion of the judgment)

Gaussian映射的Lyapunov指数，MATLAB，非线性动力学(Gaussian map Lyapunov exponents，MATLAB，nonlinear dynamics)

很好用的Log-Gabor变换源代码，可以用于图像的特征提取(Good use of Log-Gabor transform source code, can be used for image feature extraction)

归一算法用在灰色关联度的计算，可以计算出权重，然后进行关联度计算。(Normalized correlation algorithm is used in the calculation of the gray, you can calculate the weights and then calculated correlation.)

重力异常的向上延拓程序，很实用，，推荐地球物理学生学习可直接使用。 (Gravity anomaly upward extension program, it is practical, and recommended geophysics student learning can be used directly.)