induction-machine

梅林变换是参数估计里很重要的一种方法 应用很广泛 (Mellin transform is a very important parameter estimation methods in a very wide range of applications)

Buck Boost converter simulink model

使用matlab编写的PSO算法，求解函数最优值(using matlab to realize particle swarm optimization algorithm for optimization)

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)

说明：  用matlab实现的GSM TCH/EFS系统在高斯信道、瑞利信道下的性能仿真，其中用到了循环编码、卷积码、交织码等信道编码技术(Using matlab to achieve GSM TCH/EFS system in the Gaussian channel, Rayleigh channel the performance of simulation, which uses a loop encoding, convolutional codes, interleaving codes channel coding techniques)

matlat 环境下haar小波分析，可以改写成C 语言 (haar wave analysis)

建立LibSVM预测模型，基于网格算法、粒子群算法、遗传算法优化了模型参数，并由最终模型预测了给定切削参数下零件的粗糙度等级。(Establish LibSVM prediction model, grid-based algorithm, particle swarm optimization, genetic algorithm to optimize the parameters of the model, the final model prediction given by the cutting parameters of parts roughness class.)

关于一篇英文论文中峭度谱分析方法的变成，用于轴承故障诊断中。(A paper on a English kurtosis spectrum into analysis method, used for fault diagnosis of bearing.)

说明：  雨流计数法的matlab实现-三点法与四点法两种实现方法。此文档为应用三点法与四点法的雨流计数法的具体matlab代码与部分测试数据(The realization of rainflow counting method in matlab-three-point method and four-point method. This document is the specific matlab code and part of the test data of the rain counting method using the three-point method and the four-point method)

利用最小二乘迭代方法计算用户位置的matlab程序。(This is a least-squarels program writing with matab tool!)