stickfilter

绘制庞加莱截面图 在相空间中适当（要有利于观察系统的运动特征和变化，如截面不能与轨线相切，更不能包含轨线）选取一截面，在此截面上某一对共轭变量如x1和x.1取固定值，称此截面为Poincare截面，相空间的连续轨迹与Poincare截面的交点成为截点。(Poincare mapping sections in the phase space properly (should be beneficial to observe the system and changes in movement characteristics, such as the cross-section can not be tangent trajectory, but also can not contain rail line) to select a cross-section, in this section for a total of conjugate variables, such as x1 and X.1 take a fixed value, call this cross-section for the Poincare section, the phase space of the continuous trajectory of the point of intersection with the Poincare cross-section to become cut-off point.)

QR factorization of an m × n matrix A with m ≥ n is a pair of matrices A = QR

利用matlab编写图像滤镜GUI，符合以下要求： 1.将图像中选取某一区域，进行颜色的滤镜效果； 2.移动滤镜效果的区域。 包括：马赛克，蓝光透镜和素描三种效果。(Use matlab GUI write image filter, comply with the following requirements: 1. Select an image in a certain region, color filter effects regional 2. Move the filter effect. They include: mosaic, blue lens and sketches three effects.)

说明：  光伏模块模型，使用BOOST升压电路，稳定运行，结果基本正确！！！(simulink PV model Photovoltaic module model, using boost boost circuit, stable operation, the results are basically correct!!)

刚度矩阵转换到整体坐标系的matlab的程序(Stiffness matrix transformation to the global coordinate system matlab program)

本算法是基于图论的广度优先搜索算法，对于配电网的孤岛搜索，以及各个孤岛的电气连通性判别具有很好的效果。(Used to solve the problem about graph search algorithm. )

说明：  用于运动想象脑电信号分类，简单的代码程序以供参考。(It is used for the classification of EEG signals of motor imagination, and simple code program for reference.)

说明：  基于正反馈频率漂移的光伏并网逆变器反孤岛控制。一个比较好的参考资料(Based on positive feedback frequency drift of photovoltaic grid inverter control against the island. A better reference material )

说明：  第一次上载程序，用matlab实现简单的ar算法(The first to upload program matlab simple algorithm ar)

fuzzy based leach with direct transmission to base is allowed if base station is closed than the cluster head