testingbearing5

fastsolving linear equation

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)

正弦波的PCM编码以及自己录制的语音信号的PCM编码(PCM encoded sine wave PCM encoding and recording their own voice signals)

用matlab实现了简单遗传算法解决TSP问题，有界面。(Using matlab to achieve a simple genetic algorithm to solve the TSP problem, there are interfaces.)

matlab绘图函数集手册，非常实用。适合于初学者，也适合于有一定基础的matlab用户查阅。(A handbook of set of drawing function in matlab, it is very useful for beginner, also for the users having some basis on usage of matlab.)

异步电动机数量控制完整仿真模型，可以根据实际情况写该参数，达到研究者所需要的情形(The number of complete induction motor control simulation model, the parameter can be written according to the actual situation, the researchers needed to achieve the situation)

本程序应用于EPS抗干扰控制策略研究，控制器的设计基于差异进化算法，利用差异进化算法对权函数进行优化，后通过降阶控制形成基于差异进化算法和降阶控制的鲁棒控制器。(Based on a mathematical model, which combines the diferential evolution and the robust control method for solving controller synthesis. )

matlab 常用算法程序，例如插值，矩阵特征值计算，函数逼近等常用算法。(matlab algorithm used procedures, such as interpolation, eigenvalue computation, function approximation and other common algorithms.)

关于无线信道的多普勒谱 无线信道中的多普勒谱有一种经典谱请解释产生这种谱形状的机理；(1. On the radio channel of the Doppler spectrum (2) wireless channel Doppler spectrum has a classic spectrum (classic spectrum), please explain such a spectral shape of the mechanism )

julian to gregorian calendar convertor//// Very Accurate/// No Bug