Diesel-Engine-Fault-Diagnosis

Complex Color Noise Generator based on Allan Variance coefficients (MatLab function)

这里有OQPSK的调制源程序代码，用matlab做的，很好，需要的可以在这里下载(There are OQPSK modulation source code, using matlab to do, and very good, needs can be downloaded here)

锁相环的matlab simulink 仿真(The objectives of this laboratory are: To introduce students to Phase Locked Loops (PLL) and their operation. To predict and measure the PLL characteristics. To set up practical circuits using the PLL.)

语音信号处理Matlab MATLAB-based digital signal processing and Practice Development(Speech Signal Processing Matlab)

matlab的安装和下载，有具体的安装目录，可以在window系统上下载安装(matlab installation and download, there is a specific installation directory, you can download and install on the window system)

S4VM 对传统的S3VM 进行了改进。传统的S3VM 基于低密度假设，它试图找到一个低密度的分界线， 也就是更倾向于决策边界穿过特征空间的低密度区域。S4VM 和S3VM 的不同点在于，S3VM 试图把注意力 集中在一个最优的低密度分界线上，而S4VM 则同时关注多个可能的低密度分界线。之所以这样做，是因为 给定一些有标记的点和大量未标记的点，可能存在着不止一个“间隔”较大的低密度分界线（如图2 ），基于 有限的标记样本，很难决定哪个是最好的。虽然这些低密度分界线都与有限的标记样本吻合，但它们之间差 异很大，因此如果选择错了，会有一个很大的损失，导致性能下降。所以S4VM 试图考虑所有可能的低密度 分界线。 (Over the past decade, many improved versions are proposed to solve every different specific problem of semi-supervised support vector machines, for example: to the inefficiency issue, meanS3VM is introduced to performance degenerate problem, S4VM is proposed)

此算法是著名的流行学习算法，可以用于数据特征的提取，维数约减等操作。(This algorithm is a famous and usefule algorithm for extrating the fature or reducing the dimension.)

说明：  伺服阀的详细数学模型，适合初学者研究，可以较方便更改(A detailed mathematical model of servo valve, suitable for beginners study, can be more convenient to change)

TV图象修复 自己写的小程序 matlab (TV image restoration himself wrote a small procedure Matlab)

hyper chaotic transformation