speech-processing

fractal image compression

Hamming code. Simulation the BER to a code Hamming

使用了plot_hht程序包，其使用了三个终止条件，驻留分量的单调性，极值点与零点的个数相差不超过1，还有黄锷1998经典文献提出的 (matlab hht)

直方图均衡法的MATLAB图，经过测试没有问题，绝对可以用，做图像的同学可以用来参考.大家可以下载下来在MATLAB中运行试试(Histogram equalization method of MATLAB figure, after test no problem, absolutely, can be used to do image can be used for reference)

说明：  FDA方向图的matlab仿真实现 是最简单的均匀线阵(FDA beampattern Is the simplest uniform linear array)

把辨识分成两步进行：第一步：利用相关分析法获得对象的非参数模型（脉冲响应或相关函数）；第二步：利用最小二乘法、辅助变量法或增广最小二乘法等，进一步求的对象的参数模型。如果模型噪声与输入无关，则Cor-ls相关最小二乘法（二步法）可以得到较好的辨识结果。Cor-ls相关最小二乘法（二步法）实质上是先对数据进行一次相关分析，滤除了有色噪声的影响，再利用最小二乘法必然就会改善辨识结果。能适应较宽广的噪声范围，计算量不大，初始值对辨识结果影响较小。但要求输入信号与噪声不相关(The identification is divided into two steps: the first step: using the correlation analysis method for object nonparametric model (impulse response or related function) The second step: using the least squares method, auxiliary variable method or augmented least squares method and so on, further for the parameters of the object model. If the model input noise and independent, the Cor- ls related least squares (two footwork) can get good recognition results. Cor- ls related least squares (two footwork) is essentially the data to a correlation analysis, filter in addition to the influence of colored noise, using least squares inevitable will improve the identification result. To adapt to a wide range of noise and calculation is not big, the initial value to identification results less effect. But for the input signal and noise are not related)

惩罚最小二乘法扣除基线背景，需要微调参数,可以得到很好的扣除基线背景的效果(Deducting background baseline punishment least-square method, need to fine tune parameters, to deduct the baseline background can get good effect )

结构光是三维重建matlab完成实例~。(Which matlab just completed rebuilding the structure.)

运用Matlab，对一些对比度较差的图片进行目标物提取时使用的阈值方法，其中，其运用的是动态阈值的方法（非全局阈值）(Using Matlab, for some poor contrast image target extraction using threshold method, among them, the use of a dynamic threshold method (not a global threshold value))

涉及matlab使用过程中经典的命令大全，可以帮助使用者快速操作matlab。(Involved in the the MATLAB process of using classic command Guinness, can help users quickly the operation of Matlab.)