1990-06(NICAM-from-BBC)

这是一个数字图像处理的matlab仿真程序，效果比较好(This is a digital image processing matlab simulation program, the effect is better)

《MATLAB程序设计教程》电子教案-13章，附有所有源代码，希望对学习MATLAB的同僚能有所帮助。(" MATLAB programming tutorial" electronic teaching-13 chapters, with all source code, I hope to learn MATLAB colleagues can help.)

fastica用于信号处理，好用的工具包(FastICA for signal processing, use the toolkit)

this is code for noice remove

The main features of the considered identification problem are that there is no an a priori separation of the variables into inputs and outputs and the approximation criterion, called misfit, does not depend on the model representation. The misfit is defined as the minimum of the l2-norm between the given time series and a time series that is consistent with the approximate model. The misfit is equal to zero if and only if the model is exact and the smaller the misfit is (by definition) the more accurate the model is. The considered model class consists of all linear time-invariant systems of bounded complexity and the complexity is specified by the number of inputs and the smallest number of lags in a difference equation representation. We present a Matlab function for approximate identification based on misfit minimization. Although the problem formulation is representation independent, we use input/state/output representations of the system in order (The main features of the considered identification problem are that there is no an a priori separation of the variables into inputs and outputs and the approximation criterion, called misfit, does not depend on the model representation. The misfit is defined as the minimum of the l2-norm between the given time series and a time series that is consistent with the approximate model. The misfit is equal to zero if and only if the model is exact and the smaller the misfit is (by definition) the more accurate the model is. The considered model class consists of all linear time-invariant systems of bounded complexity and the complexity is specified by the number of inputs and the smallest number of lags in a difference equation representation. We present a Matlab function for approximate identification based on misfit minimization. Although the problem formulation is representation independent, we use input/state/output representations of the system in order)

图像的特征提取，用于图像的分类研究 主要是用的MATLAB(Image feature extraction)

this is a kalman filter

基于matlab的声音特征提取，可用于语音识别和声纹识别(Matlab-based audio feature extraction, can be used for speech recognition voiceprint recognition)

说明：  为了减少边缘检测中的噪声影响,设计了一种分数阶差分滤波器,给出了该滤波器的原理,分析了此类滤波器的幅频特性.(In order to reduce the effect of the noise in edge detection,a kind of fractional-order difference filters were designed,whose theory was worked out and amplitude-frequency characteristic were analyzed.)

说明：  根据turbo编码器的生成多项式对输入信息进行编码(turbo encoder)