DCT-Based--Watermarking-Scheme

LE计算方法。这里给出了经典的分析方法。(LE calculation. Here are the classic analytical methods.)

gives a nice phase portrait of dynamical systems

EM 算法是Dempster，Laind，Rubin于1977年提出的求参数极大似然估计的一种方法，它可以从非完整数据集中对参数进行 MLE估计，是一种非常简单实用的学习算法。这种方法可以广泛地应用于处理缺损数据、截尾数据以及带有噪声等所谓的不完全数据，可以具体来说，我们可以利用EM算法来填充样本中的缺失数据、发现隐藏变量的值、估计HMM中的参数、估计有限混合分布中的参数以及可以进行无监督聚类等等。(EM algorithm is a method for maximum likelihood estimation of parameters proposed by Dempster, Laind and Rubin in 1977. It can estimate parameters from incomplete data sets by MLE. It is a very simple and practical learning algorithm. This method can be widely used in dealing with the so-called incomplete data such as defective data, censored data and noisy data. Specifically, we can use EM algorithm to fill missing data in samples, find hidden variable values, estimate parameters in HMM, estimate parameters in finite mixed distribution, and so on. Unsupervised clustering and so on.)

说明：  实现三电平整流功能，相对于两电平，电平数更多，谐波更小(Achieve three-level rectification function, with more levels and less harmonics than two levels)

usefull to learn graphs in matlab

模式识别分类器的设计，此为K均值法源码，经调试通过。所用数据为标准IRIS。(Pattern recognition classifier design, the source for the K-means, after debugging through. Data used as the standard IRIS.)

现代控制理论的课程设计。内容是二级倒立摆的源码，仿真等(Curriculum design of modern control theory. Content is the source of double inverted pendulum, simulation, etc.)

上传内容为matlab的一些实例程序，希望对大家能有所帮助~(From some of the content for the matlab example programs, we want to help ~)

控制系统模型的建立：将常规PID控制改进为带自适应的模糊PID控制，使控制系统的精度和稳定性有比较好的效果(fuzzy pid control)

齿轮啮合重合度计算,三个行星轮的动力学均在特性计算(dynamic load sharing )