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MATPOWER 是一个基于matlab m 文件的组建包，用来解决电力潮流和优化潮流的问 题。它致力于为研究人员和教育从业者提供一种易于使用和可更新的仿真工具。Matpower 的设计理念是用尽可能简单、易懂，可更新的代码来实现最优秀的功能(Matpower is a package of Matlab M-les for solving power ow and optimal power ow problems. It is intended as a simulation tool for researchers and educators that is easy to use and modify. Matpower is designed to give the best performance possible while keeping the code simple to understand and modify.)

说明：  rc滤波器的设计，很详细的过程，从原理到代码都有(rc filter design, a very detailed process, from theory to code all)

L-M(Levenberg—Marquardt)是一种非线性最优化里面最常用的方法之一，改方法能快速而准确的逼近收敛值。本文简述了改方法的操作原理和具体运用，如可以方便的用于有约束与无约束最优化的求解。本文件里面有源码和测试码以及对该方法的具体介绍PDF文件。欢迎下载。(L- M (Levenberg- Marquardt) is a kind of nonlinear optimization inside one of the most commonly used method, change method can fast and accurate approximation convergence value.This paper briefly describes the operating principle of change method and concrete application, such as easy to solve constrained and unconstrained optimization.This document there are source code and test code as well as to the PDF file the detailed introduction of the method.Welcome to download.)

The statements below guide us to write the code for the transmission of sensed data to a sink node using cognitive radios in multiple spectrum bands. In doing this we are trying to find the most appropriate modulation scheme using MATLAB simulation.

HELP FOR STUDENT AND POWER DOCTOR

tEXCURE CLASSIFICATION

计算电磁学 二维廖氏吸收边界程序 采用MATLAB编写(Lio dimensional computational electromagnetics absorbing boundary program written using MATLAB)

径向基函数是一个取值仅仅依赖于离原点距离的实值函数，也就是Φ（x）=Φ(‖x‖),或者还可以是到任意一点c的距离，c点称为中心点，也就是 Φ（x，c）=Φ(‖x-c‖)。任意一个满足Φ（x）=Φ(‖x‖)特性的函数Φ都叫做径向量函数，标准的一般使用欧氏距离，尽管其他距离函数也是可以的。一些径向函数代表性的用到近似给定的函数，这种近似可以被解释成一个简单的神经网络，径向基函数在支持向量机中也被用做核函数。(Radial basis function depends only on the value of a real-valued function of the distance from the origin, i.e. Φ (x) = Φ (x ‖ ‖) or may also be the distance to any point c, c is called the center point , i.e. Φ (x, c) = Φ (xc ‖ ‖). Satisfy any one of Φ (x) = Φ (x ‖ ‖) characteristic functions are called radial vector function Φ standard Euclidean distance is generally used, although other distance functions are also possible. Some typical uses radial function approximation given function, this approximation can be interpreted as a simple neural network, RBF in support vector machines have also been used to make nuclear functions.)

这部分代码主要实现了TURBO码的编解码，运用max-log-map译码方法进行译码(this code realise the encode and decode function of turbo,the decoding algorithm is by max-log-map)

matlab的simulink的简单介绍和一些例子，适合初学者(the matlab simulink the brief and some examples, suitable for beginners)