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targil3
m-pskmodulation and de modulation
- 2010-09-08 01:31:33下载
- 积分:1
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douleandsingle
基于Simulink的模拟双边带与单边带调制系统设计(Simulink-based simulation of double sideband and single sideband modulation system design)
- 2012-05-01 21:03:18下载
- 积分:1
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LFM_radar
这个程序是用来雷达信号测距模拟的。这个信号时线性调频信号(This program is used to simulated radar signal ranging. Chirp signal when this signal)
- 2013-02-20 08:22:31下载
- 积分:1
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dfs_image_main
图像域上的DFS遍历,函数返回连通域数量,范围端点以及最大值(DFS traversal on the image domain, the function returns the number of connected domains, the scope of the endpoint as well as the maximum value)
- 2009-11-06 10:07:03下载
- 积分:1
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fir
Matlab code for FIR filters
- 2021-04-06 15:39:02下载
- 积分:1
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333333308Matchbasedoncorners
这个是基于角点的匹配和拼接的MATLAB算法程序,如果有用得到的,可以参考!(is based on the corner of the match and combinations of MATLAB algorithm procedure, if the useful, reference!)
- 2006-11-22 09:31:34下载
- 积分:1
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SVM
SVM算法在 matlab实现, 包含说明书,源代码等(SVM experiment on matlab)
- 2015-01-28 20:15:25下载
- 积分:1
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Matlab
matlab基础学习及应用,适合matlab初学者(matlab foundation)
- 2012-11-09 11:32:11下载
- 积分:1
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fsk_4
FSK信号的频带仿真,采用的是最基本的带通加低通的解调形式(Simulation of FSK band signal)
- 2015-05-15 10:07:14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