Copula

s1.m: 低频波检测。能从高频信号中检测出低频信号。并将信号输出以70倍因子downsample. s2.m: 将downsampling滤波器输出信号，用单级速率和多相upsampling。 s3.m: 自动识别车牌位置。此程序能从一张图片当中，自动识别出车牌的位置。 s4.m: 用Hough变换识别出一张带有水池的图片的水池分界线。 s5.m: 用原始的静态多副图片（例如：恐龙图片）构造出三维旋转立体图片。(signal processing)

图像的置乱处理，包括了模板置乱法，幻方置乱法和图像的一个基本加密方法——4bit置换(Scrambled images, including the template scrambling method, magic squares and image scrambling method is a basic encryption method- 4bit replacement)

北航张志涌的《精通MATLAB7.0》，很详细的介绍了MATLAB的基本命令以及用法，以及SIMULINK的使用方法(Northern Zhang Yong " Mastering MATLAB7.0" , a very detailed introduction to the basic MATLAB commands and usage, and the use of SIMULINK)

小波域相关法去噪的matlab源程序。空域相关滤波是基于小波系数尺度之间相关性原理，比较适用于高信噪比信号(The correlation of the wavelet domain denoising Matlab source. The spatial correlation filter is based on the principle of correlation between the wavelet coefficients of scale, more suitable for high SNR signal)

it will help to remove speckle noise remove using wavelet filters in medical images

线性调频信号 雷达发射接收 匹配滤波 等等，一些基本的代码(Linear frequency modulated radar signal transmit receive matched filtering and so on, some of the basic code )

这是基于IHMPT（积分高阶匹配相位变换）方法的多分量三阶相位多项式信号（即立方相位信号）参数估计算法程序包，包含了相关的6个子函数、测试程序以及参考文献等。可以实现对各分量的幅度、各阶相位系数的精确估计。具有广泛的应用，如雷达成像中回波信号具有多阶相位多项式的形式。(This is a matlab code package for an algorithm of estimating parameters of Multicomponent 3-order Polynomial phase signal (Cubic-PPS). The algorithm is based on IHMPT(Integrated High-order Matched Phase Transform). The code package include relevant functions,test codes and reference paper. An accurate estimation of the amplitude and phase coefficients of each order can be obtained by this package. It has a wide application,e.g., the echo signal of radar has the form of PPS. )

how bit loading is done by the help of SNR

matlab code to change IR and grahy scale to RGB images

自己整理的粒子群算法的合集，matlab环境开发的~比较实用(Own finishing particle swarm optimization Collection more practical, the matlab environment for the development of ~)