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SimulatedAnnealing
说明: 本文介绍了模拟退火算法的原理和求解方法,并将其用于指数曲线的拟合,在Matlab语言环境下实现了该算法,并且与文献中的遗传算法、线性回归相比较。数值模拟结果表明,该算法能更好地实现最优拟合。(This article describes the principle of simulated annealing algorithm and solution methods, and used an exponential curve fitting, the language environment in Matlab implementation of the algorithm and the genetic algorithm with the literature, linear regression comparison. Numerical simulation results show that the algorithm can better achieve the optimal fit.)
- 2010-04-28 20:59:37下载
- 积分:1
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rayleigh.m
这是关于rayleigh衰落信道的仿真mat源程序与大家共享(on rayleigh fading channel simulation mat source files and share)
- 2007-01-22 16:02:16下载
- 积分:1
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RS-CODE
粗糙集属性约简过程中的下近似及上近似域的matlab实现(Rough set attribute reduction under the approximation of the process and on the realization of similar domain matlab)
- 2011-09-03 19:07:29下载
- 积分:1
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chemistryandmatlab
本书详细的介绍了利用matlab解决化学工作人员遇到的作图、计算、数据处理等问题。(This book describes in detail the staff using matlab to solve chemical mapping experience, computing, data processing and other issues.)
- 2010-11-02 11:49:26下载
- 积分:1
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97lifting-wavelet
文件中有两个97提升小波程序,可以直接在matlab中运行,已经试过(File has two 97 lifting wavelet procedures can be directly run in matlab, have tried)
- 2013-11-08 00:10:42下载
- 积分:1
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SPR5layeranglelongrange
用于计算超长程表面等离子体共振角度谱的反射率曲线(super long-range surface plasmon resonance is used to calculate the spectral reflectance curves of the angle)
- 2013-12-16 20:18:31下载
- 积分:1
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MATLABandCCS
说明: 这是这段时间 在网上荡的 MATLAB 与CCS联调的资料。里面包含的联调的命令,以及一个完整的FIR 程序,利用MATLAB与CCS的联合实现!希望对大家有用。。。(This is a time-line swing of MATLAB and CCS FBI data. Which included the FBI' s command, as well as a complete FIR program using MATLAB and CCS, the joint realization of! Want to be useful to everyone. . .)
- 2010-03-25 15:58:28下载
- 积分:1
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PlateProblem
A Plate Element displacements for effective shear force
- 2010-05-18 02:30:27下载
- 积分:1
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MATLAB
一、 牛顿-拉夫逊法概要
首先对一般的牛顿-拉夫逊法作一简单说明。已知一个变量X的函数
(4-6)
解此方程式时,由适当的近似值X(0)出发,根据 (4-7)
反复进行计算,当X(n)满足适当的收敛判定条件时就是(4-6)式的根。这样的方法就是所谓的牛顿-拉夫逊法。
式(4-7)就是取第n次近似解X(n)在曲线 上的点 处的切线与X轴的交点作下一次X(n+1)值的方法。参考图4-2(a)。在这一方法中为了能收敛于真解,初值X(0)的选取及函数f(X)必须满足适当的条件,如图4-2(b)所示的那种情况就不能收敛或收敛到别的根上去。
这一方法还可以做下面的解释,设第n次迭代得到的解与真值之差,即 的误差为 时,则
(4-8)
把 在 附近对 用泰勒级数展开
(4-9)
上式略去 以下的项
(4-10)
的误差可近似由上式计算出来
图4-2
(4-11)
比较式(4-7)和(4-11),可以看出牛顿-拉夫逊法的修正量和 的误差的一次项相等。
用同样的方法考虑,给出对n个变量 (:Because of the importance and complexity of power system, better algorithm and programme language
is very important . An interior point method based on the perturbed Karush2Kuhn2Tucker (KKT) condition is pre2
sented in this paper , where the method and process for the optimal power flow is treated through the Matlab’s
symbolic math toolbox and Mfunction is also presented. Using the symbolic code , it can improve the adaptability
of the programme dramatically. The advantage is that , what we need to do is change the model expression. We
can make use of the symbolic programme to check our programme while we write the Mfunctions. Using the Mat2
lab , we find the optimal solutions and calculate quickly and efficiently. It has proposed the powerful and unique
functions of Matlab in the optimization and calculation for power system.
Key words :power system symbolic calculation optimal power flow interior point method)
- 2020-07-08 16:38:56下载
- 积分:1
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fanyi
这是一个使用背靠背式PWM转换器提供隔离负载的变速翼式涡轮双馈感应发电机(This is a back-to-back PWM converter provides isolation load variable speed wing turbine doubly fed induction generator)
- 2013-05-15 21:25:01下载
- 积分:1