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PSNR
%本程序功能是计算2幅彩色图像的PSNR,以此来评价图像处理的效果%%%%%%%%%
% 运行的结果保存在变量PSNR中( This program features the calculation of two color images of the PSNR, in order to evaluate the effect of image processing the results of running stored in variables in PSNR)
- 2008-01-15 21:56:47下载
- 积分:1
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ClutterProduce
基于matlab的雷达杂波的模拟,包含有瑞利、对数正态、韦伯杂波等等(Simulation of the Radar clutter based on matlab)
- 2020-11-10 10:19:46下载
- 积分:1
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MATLABbase
matlab的基础知识 适合刚接触该软件的使用者(matlab basic knowledge for users of the software刚接触)
- 2008-03-24 18:01:52下载
- 积分:1
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mexicanwt
墨西哥帽小波变换源程序,开发环境为Matlab(Mexican hat wavelet transform using matlab)
- 2009-12-16 22:46:33下载
- 积分:1
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GA
Genetic algorithm for optimization
- 2010-01-16 09:30:45下载
- 积分:1
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featuresvoice-unvoice
features to voice and un voice classification , pitch determination whith AMDF and other features like Spectral Centroid and Entropy of the energy
- 2013-05-07 08:58:17下载
- 积分:1
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元胞自动机仿真车道车流情况
说明: 元胞自动机仿真车道车流情况,可以显示图像,可以成功编译(Cellular automata can simulate traffic flow in lanes, display images, and compile successfully.)
- 2019-04-16 20:56:32下载
- 积分:1
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Untitled
使用Matlab生成几种典型数字信号(正弦信号、周期信号、高斯随机信号等)(Generated using Matlab typical digital signal)
- 2010-07-03 01:12:10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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apiXC_Hdmi
描述TV HDMI 输入源的信号侦测及Parser过程。(Description HDMI signal input source detection process.)
- 2013-12-13 00:01:03下载
- 积分:1