FFT_filter

在simulink中建立了GIM轮胎模型，此模型可以用来求轮胎的纵向力和侧向力。(The tire model for GIM was established in simulink , this model can be used to find a tire longitudinal force and lateral force.)

说明：  本征正交分解(Proper Orthogonal Decomposition, POD)作为一种大批量处理数据的方法，在众多的领域中都涉及应用(Proper Orthogonal Decomposition, POD)

这是一个里卡迪方程的简易对角线解法，有一定的现实意义，可以在matlab的计算里减少很大的计算量。十分好用(This is a simple solution Ricadi diagonal equation, there are certain practical significance, can reduce a large amount of computation in the calculation in matlab. Very easy to use)

说明：  例子滤波源程序，利用粒子滤波模拟跟踪拟合曲线(partical filter)

语音信号特征提取技术,PLP，MFCC,FFT等MATLAB程序。(plp mfcc)

This is a MATLAB implementation of the SIFT keypoint detector and descriptor (do_gaussian: generate Gaussian scale space of input image do_diffofg: generate Difference of Gaussian (DoG) scale space do_localmax: local extrema as the potential keypoints do_extrefine: refine the keypoints by discarding the ones with low contrast and along an edge do_orientation: compute the orientation of a support region of keypoint do_descriptor: compute the descriptor of a keypoint based on image gradients. do_match: match two images based on the nearest neighbor principle and spatial consistency. do_sift: generate the SIFT descriptors for a given input image. It basically s all the functions above. )

lingdo软件的基本使用方法。有详细的例子以及解释，帮助我们快速的掌握这个数学软件(lingdo the basic use of software. Detailed examples and explanations to help us to quickly grasp the mathematical software)

一本关于控制系统仿真的书的程序 1、文件夹1中的程序是书中的一些仿真。 2、文件2中的是最近做的预测控制、PID控制及逻辑控制的对比综合研究。 3、文件夹3中是与maltab通信的数据采集板的设计文件。包括串口设计、USB1.1及USB20设计。这是最新的设计资料，很有参考价值。 (About a control system simulation procedure one book, folders, one in the book are a number of procedural simulation. 2, document 2 are recent to do predictive control, PID control and logic control study Comparative General. 3, folder 3 are maltab communication with data acquisition board design document. Including the serial design, USB1.1 and USB20 Designed. This is the latest design information, useful reference value.)

Calculate the inverse of a mod n using Extended Euclidean s Algorithm. Source code available.

用MOM计算V型天线的电流分布、输入阻抗及辐射方向图。其中L=0.3λ，L/a=2000，激励用δ-gap模型。(MOM calculated using V-shaped antenna current distribution, input impedance and radiation pattern. Where L = 0.3λ, L/a = 2000, excitation δ-gap model.)