shah-method-for-PDOF

有限元程序的matlab工具包，用于各种不同有限单元的划分，力和响应的计算等(Matlab finite element procedure kits for a variety of finite element division and the calculation of response)

说明：  　本文对变步长自适应滤波算法进行了讨论,建立了步长因子μ与误差信号e(n) 之间另一种新的非线性函数关系. 该函数比已有的sigmoid 函数简单,且在误差e(n)接近零处具有缓慢变化的特性,克服了Sigmoid 函数在 自适应稳态阶段步长调整过程中的不足. 由此函数本文得出了另一种新的变步长自适应滤波算法,并且分析了参数α,β的取值原则及对算法收敛性能的影响. 该算法有较好的收敛性能且计算量少. 计算机仿真结果与理论分析相一致,证实了该算法的收敛性能优于已有的算法.(In this paper, variable step adaptive filter algorithm to discuss the establishment of a step factor μ and the error signal e (n) between another new nonlinear function. The function has a sigmoid function than the simple and the error e (n) close to zero Department has a slow change in the characteristics of a Sigmoid function to overcome the steady-state phase in the adaptive step length adjustment during the process. this function, this paper gives another new variable step size adaptive filtering algorithms, and analysis of the parameters α, β the value principles and the convergence performance. The algorithm has better convergence performance easy to calculate. Simulation results and theoretical analysis, confirmed the convergence of the algorithm better performance than existing algorithms.)

计算潮流与最优潮流，应用MATLAB，功能相当强大(Load flow and optimal power flow, application of MATLAB, functions quite powerful)

本程序是关于K变化的LMS算法，可用于水声信道，有图(This program is the LMS algorithm, on the change in K can be used for underwater acoustic channel, Figure)

GSM simulation in simulink. composd of encoder and decoder. but it is not completed

该文件是我自编的FDTD 1D 2D 3D的入门MATLAB程序。然后包含一些贴片天线的代码。全是自编，点击可运行。(The files are the codes for FDTD coding including 1D 2D 3D using MATLAB. There are also codes for patch antenna modelling)

一个MATLAB 图形处理软件，是标准的.m 程序，可以批量的对图片进行截图处理，读取截图范围内的强度积分值，并按照图片变 化绘制强度变化曲线。(A MATLAB graphics processing software, is standard .m program, you can batch processing of image shots, read intensity integral value within the range of screenshots and image intensity curve drawn to change.)

imnoise2 预加噪声 matlab code(imnoise2 pre-plus noise)

一级直线倒立摆 频率控制 matlab simulink仿真(A linear inverted pendulum frequency control matlab simulink simulation)

小波分析，用于时间序列的周期性分析，更换函数即可使用(Wavelet analysis is used for periodic analysis of time series, and can be used to replace functions.)