BAB-I-1

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)

比较全面的介绍matlab处理图像图形的命令，以及相关的说明和实例(More comprehensive introduction matlab image processing graphics commands, and related instructions and examples...)

介绍了一种新的解相干的方法，所用的阵列为均匀圆阵(Introduces a new method of decoherence, the use of arrays of uniform circular array)

14节点系统牛顿拉夫逊法潮流计算程序.jingdiansuanfa..(Newton Raphson power flow calculation program 14-node system. Jingdiansuanfa ..)

最佳ML和最佳MAP的matlab仿真的性能分析和比较(MAP, ML and best best matlab simulation performance analysis and comparison)

心电图导联重建（Frank导联系统）系数推导程序。采用Dower经典系数推导，结果已经验证。(Reconstruction Coefficients for ECG 12-Lead System. Data from Dower is employed as derivation and the results have been verified.)

说明：  采集现场轴承振动信号，计算其常用的时域指标(Collection site bearing vibration signals, calculate the commonly used time domain)

psnr calculation matlab code

matlab编制的五波峰脉冲调制信号，应用heaviside脉冲函数(Five crest pulse modulated signal matlab compiled application heaviside pulse function)

广义雅克比算法，求解小维数矩阵全部特征值的变换类算法(failed to translate)