PCA_based-Face-Recognition-System

A tutorial on Principal Components Analysis

OFDM高功率放大器.供学习matlab的同学交流学习 (The Matlab code investigates the harmful effects of high power amplifier on ofdm signals. It is imagined that the amplifier destroy the amplitude of the transmitted signal due to saturation and has no effect on the signal phase. The model is acceptable for solid state amplifier to some extend.)

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.)

开放办公室介绍(ICSI 2011研讨会,Cergy)(Open Office presentation (ICSI 2011 seminar in Cergy))

matlab在振动分析中的应用源代码 包括各种信号处理的时域频域方法 强烈推荐 仅供学习交流(matlab in vibration analysis application source code, including various signal processing frequency domain method is strongly recommended for learning exchanges)

16qam的几种实现方法，对于初学者可能有用，MATLAB环境。(Several 16qam implementation method may be useful for beginners, MATLAB environment.)

该文件可以成功的读取GML格式的文件，GML是图论中的一种通用文件格式(This project can read GML file successful and GML is a common file format in graph theory)

利用高斯-勒让德多项式计算 sin(x+y)在矩形区域的积分(use Gauss- Legendre polynomials calculated sin (x y) in the rectangular region of Integral)

Buck变换器是最常用的变换器，工程上常用的拓扑如正激、半桥、全桥、推挽等也属于Buck族，其中Buck变换器补偿网络设计，是开关电源的重要研究课题，本文将针对基于PI控制方式的4A开关电源进行设计和Multisim的仿真研究。(Buck converter is the most commonly used converter on the topology of the project, such as forward, half bridge, full bridge, push-pull, the Buck family, Buck Converter compensation network design is an important research topic of the switching power supply, this paper4A-based PI control switching power supply design and Multisim simulation study)

這是一個Matlab的麻將圖紋辨識的源碼,內部有附上相關註解(This is a pattern recognition Mahjong Matlab source code, internal comments have attached the relevant)