Models

matlab程序设计之环境变量教程environmental variables matlab programming tutorial(environmental variables matlab programming tutorials environmental variables matlab programming tutorial)

高斯白噪声激励下二自由度振动系统的蒙特卡罗模拟(Gaussian white noise excitation under two degrees of freedom vibration system Monte Carlo simulation)

激光谐振腔中激光模式的仿真，包括不同腔型(Simulation of the laser mode in the laser cavity, including the type of cavity)

基于谱熵法的语音信号端点检测方法的matlab程序，可以用于语音信号的处理(Endpoint detection method based on speech signal spectrum entropy method matlab program that can be used to handle voice signals)

莫里森方程在小振幅波（线性波）理论下的波浪力的计算，船舶与海洋工程专业，波浪力学课程(Morrison equation in the small amplitude wave (linear wave) theory calculation of wave forces )

程序实现了直接序列扩频通信系统，简单易懂。(Program realization of the direct sequence spread spectrum communication system, straightforward.)

A fast and simple voxel traversal algorithm through a 3D space partition (uniform grid)

EMD镜像延拓数据分解，金融数据平稳化过程，有效分解非平稳数据。(EMD decomposition mirror extension data, financial data smoothing process, effectively decompose non-stationary data.)

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)

Yen threshold method realized in Matlab environment based on Yen J.C., Chang F.J., and Chang S. (1995) "A New Criterion for Automatic Multilevel Thresholding" IEEE Trans. on Image Processing, 4(3): 370-378