MATLAB

risk Granger 因果关系检验模型(risk Granger)

蚁群混合算法源代码 采用MATLAB，必要的说明和注释(Hybrid ant colony algorithm source code using MATLAB, the necessary instructions and notes)

说明：  这是本人下载的matlab 代码，希望能注册账号，成为会员(hello)

射线追踪,包含了起点和终点的射线函数，对于地震传播研究具有重要意义！(Raytracing in a v(z) world. The toolbox contains functions forshooting fans of rays and functions for tracing rays with specific start and end points. General multi-bounce rays with any number of mode conversions can be traced. Automatic routines for P-P and P-S primaries in shot-gather geometry are provided for convenience. Any recording geometry can be used but most functions vectorize (e.g. are most efficient) for shot-gather geometry. Only traveltimes and rayparameters are detemined, not amplitudes. In these routines, the velocity models should be considered as "background" models. This means that the depths at which flections and mode conversions occur are dependent of the depths given as layer boundaries in the velocity models. Velocity models are specified by a vector of velocities and a same-size vector of depths. The j th velocity is in effect from the j th to the j+1 th depth. The bottom of the model is assumed at infinite depth. Thus v=5000 and z=0 specifies a cons)

matlab 代码实现神经元的Hodgkin Huxley 模型(matlab code for Hodgkin Huxley model)

说明：  小波分析理论与Matlab 7实现 添加了2次提升的小波程序 详细介绍了7的新功能(Theoty of Wavelet And Implement of Matlab 7 appended procedures of two-lever-wavelets ,and introduced the new function of matlab 7 )

this file contains the medical image processing. Here, I have to find the preprocessing methods. In this implementation i have to add the salt and pepper noise.

chan vese segmentation

根据高等转子动力学内容，编程计算转子-轴系固有扭振频率代码，每一步均配有相应的注释说明。(According to the higher rotor dynamic content, programming calculation of rotor shafting torsional vibration inherent frequency code, each step with the corresponding notes.)

Calculate the Mean Square Error (MSE) and the Peak Signal to Noise Ratio (PSNR) for different JPEG compression ratios.