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xiashan
MATLAB 牛顿下山法的一个小程序,原理就不详细说了。因牛顿迭代法受初值选取的限制,为防止迭代发散,对迭代过程再附加一项要求:|f(x(k+1))|<|f(x(k))|,将牛顿法迭代的结果:x(k+1) =x(k)-f(x(k))/f (x(k))和前一近似值x(k)适当加权平均做为新的改进值:x(k+1)=u*x(k+1) +(1-u)*x(k),其中u(0<>
迭代时u取1开始,逐次减半计算,直至附加要求符合为止。实例计算中x(k)=x(0)不变,只更新u和x(k+1),直至:|f(x(k+1))|<|f(x(k))|(即|f(x(1))|<|f(x(0))|),然后更新下山因子为u=1,继续以牛顿法迭代。(MATLAB Newton-down a small program, the principle is not explained in detail. Newton iteration by the initial value of the selected limit, in order to prevent additional iterative divergence, the iterative process a request: | f (x (k+1)) | < | f (x (k)) | Newton iteration Results: x (k+1) ' = X (k)-f (x (k))/f' (x (k)) and a previous approximation x (k), appropriately weighted average as a new improved value: x (k+1 ) = u* x (k+1) ' + (1-u)* x (k), where u (0 < u> iteration take successive calculated at 50 until the additional requirements found so far. examples of calculation of X ( k) = x (0) unchanged profile u and x (k+1, hungry) until: | f (x (k+1)) | < | f (x (k)) | (i.e. | f (x (1)) | < | f (x (0)) |), then profile downhill factor for u = 1, to continue to Newton iteration.)
- 2013-05-15 08:52:09下载
- 积分:1
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Desktop
This is about Digital signal Processing.
- 2014-01-28 05:55:43下载
- 积分:1
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自适应动态规划 ADP-code
自适应动态规划(ADP)actor-critic框架用于最优控制的matlab仿真程序代码,实测可用(Adaptive dynamic programming (ADP) actor-critic matlab simulation framework for optimal control of the program code, found available)
- 2021-04-26 16:28:45下载
- 积分:1
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Percolation_Cluster
基于MATLAB的元胞自动机模型代码
Percolation Cluster 渗流集群模型(MATLAB-based cellular automata model code
Percolation Cluster
)
- 2014-08-29 15:28:39下载
- 积分:1
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bengqeng_v13
经典的灰度共生矩阵纹理计算方法,利用matlab针对图像进行马氏距离计算 ,本科毕设要求参见标准测试模型。( Classic GLCM texture calculation method, Using matlab to calcul)
- 2016-06-01 09:31:38下载
- 积分:1
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tuxiangfenxi
对图像进行多种分析、变化,简单美观的图形操作界面,便于matlab的GUI入门学习。(A variety of image analysis, change, a simple graphical user interface appearance, easy to learn matlab entry of the GUI.)
- 2009-05-21 10:37:33下载
- 积分:1
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didu
可以打开图片的界面,并能完成图片的梯度计算和显示(open picture)
- 2010-05-15 11:50:06下载
- 积分:1
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SingleSystemMPC
本Matlab程序对预测控制中的DMC算法进行了仿真(The Matlab program DMC predictive control algorithm for the simulation)
- 2014-10-16 20:14:36下载
- 积分:1
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project
seperate linear seperable and non-linearly patters
- 2011-08-12 20:56:21下载
- 积分:1
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kalman
matlab mdl 的卡尔曼滤波程序清晰简洁(matlab mdl Kalman filtering procedures clear and concise)
- 2013-12-21 22:44:14下载
- 积分:1