112358lyapunov_wolf

在raileigh衰落信道中，BER性能有所下降，这个程序用来仿真BER(In raileigh Fading Channels, BER performance has declined, the process used to simulation BER)

直序扩频系统，首先基带信号通过脉冲成型，m序列扩频然后进行BPSK调制发送，接收端接收到信号加干扰和噪声，进行解调和解扩恢复原始信号。( The straight foreword wide frequency system, the first baseband signal through the pulse formation, the m sequence wide frequency then carries on BPSK the modulation transmission, the receive termination receives the signal to add the disturbance and the noise, carries on the demodulation and the despread restores the primary signal. )

说明：  最基本的直接扩频中如何用m语言编写语句产生pn序列(generate pn sequence )

说明：  由Cranfield大学的CaoYi教授编写的数独游戏。数独是风靡全球的智力游戏，本代码采用matlab实现基本的数独游戏功能。(By the Cranfield University, prepared by Professor CaoYi Sudoku. Sudoku is a popular puzzle game around the world, the code using matlab to achieve the basic function of Sudoku game.)

在认知无线电中，频谱感知的方法有很多，协作频谱感知克服了单节点频谱感知的缺点，特别是在衰减信道中。(In CR, spectrum sensing has many methods. The collaborative sensing is better than the single sensor sensing as a result of making the fading.)

说明：  风电机组仿真模型用于虚拟仿真,国外大型科研机构研发，很有借鉴和实际意义的。(wind turbine model used to simunlink the large scale wind turbine, it is very good. )

one dimension problem kalman filter

A simulink model for chaotic Gyrostat system

谱聚类算法建立在谱图理论基础上，与传统的聚类算法相比，它具有能在任意形状的样本空间上聚类且收敛于全局最优解的优点。 该算法首先根据给定的样本数据集定义一个描述成对数据点相似度的亲合矩阵,并且计算矩阵的特征值和特征向量 ， 然后选择合适 的特征向量聚类不同的数据点。谱聚类算法最初用于计算机视觉 、VLS I 设计等领域， 最近才开始用于机器学习中，并迅速成为国际上机器学习领域的研究热点。(Spectral clustering algorithm based on the reproduction diagram theory, compared with the traditional clustering algorithm, it can have on the arbitrary shape of sample space clustering, and the advantage of converge to global optimal solution.The algorithm firstly according to the given sample data set defines a description of the data points of similarity in pairs of affinity matrix, and computing the matrix eigenvalue and characteristic vector, and then choose the appropriate feature vector clustering of different data points.Spectral clustering algorithm was originally used in computer vision, VLS in areas such as design, I recently started used in machine learning, and quickly became a hot issue in the field of international machine learning research.)

实现了寻找最短路径的Dijkstra算法，实用性强(matlab code about Dijkstra algorithm)