fdtd100

p值法 ，通用程序，需要稍微改动一下，一定要注意，。(p value method, common procedures, need to look a little change, we must note.)

implementation to calculate the snr of a mri signal

能很好的计算李雅普诺夫指数，对初学这有一定的帮助Lyapunov+Exponents+Toolbox.rar(Well the calculation of the Lyapunov exponent, for beginners this will certainly help. )

无限冲击响应滤波器 (IIR) 实现，涉及一个Butterworth低通滤波器，设计指标为：在通带内频率低于0.2π时，最大衰减小于1dB；在阻带内[0.3π, π]频率区间上，最小衰减要大于15dB (An infinite impulse response filter (IIR) implementation, involves a Butterworth low-pass filter design specifications as follows: in the passband frequencies below 0.2π, the maximum attenuation is less than 1dB in the stopband [0.3π, π] frequency interval , the minimum attenuation greater than 15dB )

这是采用PSO算法算法以实现信号的正交匹配追踪分解及其重构……(This is the PSO algorithm algorithm to achieve signal orthogonal matching pursuit decomposition and its reconstruction ...)

说明：  自适应滤波器解决非平稳的过程，因为实际信号的统计特性可能是非平稳的或者是未知的。(Adaptive filter solves the non-stationary process, because the statistical characteristics of the actual signal may be non-stationary or unknown.)

gaussian mixture and em algorithm

包含剪切波变换（以拉普拉斯金字塔变换为尺度剖分），以及该变换的压缩感知重构测试应用程序。(Contains shear wave transform (Laplace pyramid transform for the scale subdivision), as well as the transformation of compressed sensing reconstruction test application.)

this programming shows how to process the image.it contains variable button with different process.

it s a camera calibration code written with matlab, and it s very useful for visual manipulation.