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局部线性降维方法LLE 用于高维空间数据的降维处理(Local linear dimension reduction methods for high dimensional data LLE dimensionality reduction process)

This control system has been successfully applied in some 750mm hot strip mill. The actual record curves indicate that the dynamic feedforward strategy can do well in controlling the tail temperature. And the FuzzyPI-Smith system can get better dynamic characteristic and effectively overcome the problems by pure lag with the traditional

说明：  plotHHT为一个绘制信号希尔伯特谱的程序，主要为希尔伯特黄变换。(PlotHHT is a program for plotting Hilbert spectrum of signals, which is mainly Hilbert Huang transform.)

说明：  光伏电池板仿真，里面包含三个文件，其中包括光照遮挡仿真(Photovoltaic panel simulation, which contains three files, including lighting occlusion simulation)

各种流行学习算法的执行程序，有界面，功能强大(The implementation of a variety of popular learning algorithm procedures, interface and powerful)

三相桥双极性PWM控制Simulink仿真，叠加一些其他信号，另加一滤波器观看PWM经过低通滤波后的波形，适合电力电子初学者(Three-phase bridge bipolar PWM control Simulink simulation, superimposed a number of other signals, plus a watch PWM filter through after the low-pass wave filter for power electronics for beginners)

通过边界延拓方法，改进的利用维纳滤波实现模糊图像的复原。(Through the boundary extension method, the improved Wiener filter using the fuzzy image restoration.)

光伏电池阵列输出功率受光照强度和温度变化的影响，因此最大功率点跟踪（MPPT）技术广泛应用于光伏系统中。在所有最大功率点(MPP)控制策略中，扰动观察（P&O）MPPT算法因易实现被广泛应用，然而它的缺点是在稳定工作状态下工作点通过MPP 时会导致能量振荡损耗，并且在光照强度或温度发生突变时表现较差的动态响应。在本文中，提出一种改进型变步长扰动观察MPPT 算法，此方法依据工作点动态调整步长变化，与传统固定步长方法比较，本文提出的方法能有效地提高MPPT 速度和转换效率，通过仿真和实验结果分析，验证了此改进算法的可行性。(PV array output power by light intensity and temperature changes, so the maximum power point tracking (MPPT) technology is widely used in photovoltaic systems. In all the maximum power point (MPP) control strategy, the perturbation and observation (P & O) MPPT algorithm because easy to implement is widely used, but its disadvantage is the steady-state operating point by the MPP causes energy oscillations loss, and in the light intensity or temperature mutated poor performance dynamic response. In this paper, we propose a modified variable step size perturbation and observation MPPT algorithm, this method is based on dynamically adjusting the operating point changes in steps, with the traditional fixed-step methods, the proposed method can effectively improve the speed and efficiency MPPT, The simulation and experimental results verify the feasibility of this algorithm.)

四旋翼飞行器控制，matlab仿真。文件夹里含有matlab代码和相应的文档(Full Control of a Quadrotor。 Matlab code and relative files are all attached.)

通过仿真产生频率调制信号，并对其频谱特性进行分析()