PV_TS_2

fft变化的matlab程序。。。。。。。。。(fft program in matlab)

此程序主要是通过使用小波达到图像文件压缩的目的，可以比较不同的小波函数和压缩次解压缩后图像文件的差异，注意图像是二维的处理时使用二维的小波函数(This process is mainly through the use of wavelet compression to achieve the purpose of image files, you can compare different wavelet functions and extract the compressed time difference after the image file, pay attention to the handling of two-dimensional image is the use of two-dimensional wavelet function)

此为模式识别中的Fisher线性判别方法求分类器。进行了男、女错误率和总错误率的统计。 全部程序流程如下： 1、读取FAMALE.TXT文件把身高或体重给数组，并求x1的样本均值m1和内离散度S1； 2、读取MALE.TXT文件把身高或体重给数组，并求x2的样本均值m2和内离散度S2； 3、求最佳变换向量和阀值点； 4、读取Test2.txt文件把对应的身高或体重给数组A并求A的样本数M； 5、把最佳变换向量和阀值点、x代入判别方程g（x）； 6、对本判别的错误率进行统计。(This is the pattern recognition method, to calculate the Fisher linear discriminant classifier .Were male , female and total error rate error rate statistics . All program flow is as follows : 1 , read FAMALE.TXT file to height or weight to the array, and find the sample mean m1 x1 and internal dispersion S1 2 , read MALE.TXT file to height or weight to the array, and find the sample mean m2 and x2 within the dispersion S2 3 , for the best transformation vector and the threshold point 4 , read Test2.txt file to the corresponding height or weight requirements for the array A and A is the number of samples M 5 , the best transformation vector and the threshold point , x substituted into the discriminant equation g (x) 6 , determine the error rate of the statistics . )

关于matlabStart，很好的教程值得看。(matlab)

在瑞丽噪声背景下，对chirpt信号进行检测的仿真程序(signal detection of LFM)

packet error rate when wireless body area network sensor node communicates to the destination coordinator through wireless link in the presence of single relay

双向elm，一种改进的elm，泛化能力强，速度快。(bidirectional-elm fast generate classfify matlab)

说明：  Matlab数值计算，回归分析，多元线性回归，Matlab统计工具箱的使用(Matlab numerical calculation, regression analysis, multivariate linear regression, statistical Matlab Toolbox use)

地球物理中的一维波动方程的差分逼近，文档中有原理，源码以及运行结果，非常适合学习文档。(Geophysical differential wave equation in the approximation of a document in principle, source code and operating results, is very suitable to study the document.)

自己写的JS程序： 具体是使用JS+JQ+animate动画+勾股定理实现了画太极图，原理很简单，就是使用绝对定位作为 div坐标+动画+div生成，升级画法：可以使用三角函数(sin,cos,tan etc)，使用勾股定理每个像 素点的位置不太好把握！ 最后：感兴趣的同学可以将imgs中的图片改成透明的图片，替换JS中方块，这样效果好看些。(JS write their own programs: Specifically using JS+ JQ+ animate animation+ Pythagorean realized painting of Tai Chi, the principle is very simple, is to use absolute positioning as + animation+ div div coordinate generation, upgrade painting: You can use trigonometric functions (sin, cos, tan etc), each pixel using the Pythagorean theorem Prime location is not very good grasp of the point! Finally: Interested students can imgs pictures into a transparent image, replace JS in the box, so the effect look better.)