psnr

将一幅图像用其他噪声的图像组合起来，全部代码和实例(make one pic combined with other kinds of pic and give some examples)

基于MATLAB的抽象物理概念图像化研究(MATLAB-based visualization of abstract concepts of physics)

code for computing the entropy of gray scale image, including to calculate the local entropy (especially for matlab 7.0 and lower that dont have entropy and entropyfilt function)

说明：  利用MATLAB编程实现“已知直升飞机旋转机翼外形曲线上的一些型值点及端点处一阶导数值”。(The use of MATLAB Programming known helicopter rotary wing shape curve at some point and the endpoint-type value of one derivative values. )

本例演示：如何依靠图形窗 UserData 属性在递归调用中传送用户控件的图柄，保证回调动作正确执行。(demonstration of the cases : how to rely on graphics window UserData attribute in the recursive call to transfer control of the map user handles, callback action to ensure correct implementation.)

infinite impulse response filters (IIR).. included LPF,HPF, BPF and BSF.. both butteworth and chebyshev..

用matlab的gui编写的DTMF双音多频信号生成与检测的演示程序，运行方法见readme，希望能对大家有所帮助。(Matlab by the gui prepared DTMF DTMF signal generation and detection demo program, run method see readme, for all of us hope to be helpful.)

据挖掘算法是根据数据创建数据挖掘模型的一组试探法和计算。 为了创建模型，算法将首先分析您提供的数据，并查找特定类型的模式和趋势。算法使用此分析的结果来定义用于创建挖掘模型的最佳参数。然后，这些参数应用于整个数据集，以便提取可行模式和详细统计信息。(Data mining Detailed )

瑞利衰落信道下QAM信号的误码率和误比特率仿真程序(the Simbol error rate and Bit error rate of 16QAM signal over Rayleigh fading channel)

产生任意相关系数的多路高斯分布的噪声，用于模拟信号处理的噪声环境。(Generate multiple channals of noise with arbitrary cross-correlation coefficient )