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Kalman
matlab的卡尔曼滤波预测算法例子,希望对大家有帮助(matlab prediction algorithm of the Kalman filter example, we would like to help)
- 2008-01-08 10:03:33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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240219071721427f8
说明: matlab code image proccessing codesq2
- 2019-03-22 02:39:40下载
- 积分:1
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contourtracing
matlab下的轮廓跟踪算法,获得边界数值数组和一些测量位置和边界。(get border as numeric array and a number of measurements of a spot and a border)
- 2009-04-26 13:47:47下载
- 积分:1
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gridfitdir
一种曲面拟合法——网格拟合法,该文件是MATLAB官网上的分享代码,评分非常高,值得拥有(One kind of surface fitting- grid fitting that the document is the official online sharing MATLAB code, score very high, worth having)
- 2014-09-26 10:04:23下载
- 积分:1
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SQP
利用MATLAB软件编写的序列二次规划算法程序,包括二次规划子程序的编写,用于求解非线性函数的最小值问题。(Using MATLAB software written in sequential quadratic programming algorithm program, including the preparation of quadratic programming routines for solving nonlinear function of the minimum problem.)
- 2015-02-13 17:23:42下载
- 积分:1
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change-parameter
改压缩包为matlab模型改变参数用的,值得借鉴(an example of changing the parameter in matlab)
- 2012-11-19 20:52:59下载
- 积分:1
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buibang_v14
能量谱分析计算,小波包分析提取振动信号中的特征频率,关于神经网络控制。( Energy spectrum analysis and calculation, Wavelet packet analysis to extract vibration signal characteristic frequency, On neural network control.)
- 2016-05-16 09:51:53下载
- 积分:1
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马尔科夫链蒙特卡洛模拟的matlab源代码
使用马尔科夫蒙特卡洛方法对非常规的概率密度函数进行样本抽取(use MCMC to draw samples)
- 2018-10-18 15:25:08下载
- 积分:1
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Linear_using_circular
linear convolution using circular
- 2012-08-24 04:01:08下载
- 积分:1