ex1

优秀论文及配套源码。电压暂降是动态电能质量问题中最受关注的热点之一。大量新型电力电子设备的广泛使用对电网电能质量的要求越来越高，而且电压暂降在电网中又具有一定的传播性。因此，无论从电网还是用户都迫切需要对电压暂降进行研究和治理。对电压暂降的检测是解决电压暂降的前提条件，故本论文主要对电压暂降的检测方法进行研究。 本文分析了国内外短时电能质量扰动检测的研究现状，并着重讨论了短路故障、感应电动机启动和变压器激磁三种电压暂降扰动情况下电压暂降的特性；在此基础上选择了基于S变换的短时电能质量扰动检测方法，从S变换的结果S模矩阵及S复矩阵中提取出所需数据并以此来对各种扰动情况下的电压暂降的幅值、相位跳变、持续时间和谐波含量进行分析。仿真结果表明，该方法很好地实现了对电压暂降各特征量的检测。 (The voltage sag is one of most hot topics in dynamic electric energy problems. Masses of new power and electron facilities have been put into use widely, requiring a high quality of electric network and power, chiefly the voltage sag. Moreover, the voltage sag can spread in the electric network. So people have every reason to research and control the voltage sag. However, before developing the voltage sag, people have to detect it. On account of the above, this essay will chiefly focus on the detect methods of the voltage sags. In this paper, the status of the short duration power quality disturbance based on the different method are researched firstly, and emphasizes the characteristic of the voltage sag under the situation of the three kinds of voltage sag disturbances like the short circuit fault, induction motor start-up and transformer excitation. On the basis of the above, the short duration power quality disturbance detection method based on S transform is chosen. The complex m)

图像处理中经典的PCA算法，几乎每一步的降维之前都要用到 实用性很强(PCA classical image processing algorithms, almost every step of dimension reduction should be used in very practical before)

这个文件包含了很全面的关于OFDM系统星座图扩展法原理和具体算法的步骤介绍。同时还提出了一种提高算法运行速度的改进算法(This document contains a comprehensive system of OFDM Constellation plans to expand the theory of algorithms and specific steps- presentations. Also a kind of algorithm is the improved algorithm)

信号与系统实验源代码 包括：实验一 周期信号的谐波逼近，幅频相频分析；实验二 simulink信号的抽样和内插； 实验三 GUIDE二阶状态轨迹的显示；实验四 Wav信号的波形分析及频谱分析(Signals and systems including source code of the experiment: The experiment of a periodic signal of the harmonic approximation, the amplitude-frequency phase-frequency analysis experiment II simulink signal sampling and interpolation experimental GUIDE second-order three-state trajectory display experiment four Wav signal waveform analysis and spectral analysis)

第三个例子滤波应用程序，可以了解粒子滤波的工作原理(third example filtering application that can understand the particle filter Principle)

本压缩包包括matlab的顶点覆盖近似算法、哈密尔顿回路、模拟退火应用、最大流和最小截、最短路和次短路、最短路径、最小生成树prim算法等，带有源程序和中文说明文档，此文件夹中的文件，如需被利用，则要直接放至work目录下。(The compressed packet including matlab vertex cover approximation algorithm, Hamilton circuit, simulated annealing, maximum flow and minimum cross-sectional, short-circuit and times of short-circuit, the shortest path, minimum spanning tree prim algorithm with source code and Chinese documentation, thisfile folder for use, will have to be placed directly under the work directory.)

遗传算法是计算机科学人工智能领域中用于解决最优化的一种搜索启发式算法，是进化算法的一种。这种启发式通常用来生成有用的解决方案来优化和搜索问题。进化算法最初是借鉴了进化生物学中的一些现象而发展起来的，这些现象包括遗传、突变、自然选择以及杂交等。(In the field of artificial intelligence, a genetic algorithm (GA) is a search heuristic that mimics the process of natural selection. This heuristic (also sometimes called a metaheuristic) is routinely used to generate useful solutions to optimization and search problems.[1] Genetic algorithms belong to the larger class of evolutionary algorithms (EA), which generate solutions to optimization problems using techniques inspired by natural evolution, such as inheritance, mutation, selection, and crossover.)

用于MATLAB求解油润滑轴承的压力求解，出图方便(It is used for solving the pressure of MATLAB oil lubricated bearing.)

Eigenvectors and their geometric multiplicity.

说明：  针对电路故障的诊断提出了一种基于遗传算法的方法，将遗传算法与MATLAB结合实现了电路故障诊断。(For the proposed circuit fault diagnosis method based on genetic algorithm, genetic algorithm combined with the MATLAB implementation of the circuit fault diagnosis.)