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预测系统
灰色预测模型称为CM模型,G为grey的第一个字母,M为model的第一个字母。GM(1,1)表示一阶的,一个变量的微分方程型预测模型。GM(1,1)是一阶单序列的线性动态模型,主要用于时间序列预测。 一、GM(1,1)建模 设有数列 共有 个观察值 对 作累加生成,得到新的数列 ,其元素 (5-1) 有: 对数列 ,可建立预测模型的白化形式方程, (5-2) 式中: ——为待估计参数。分别称为发展灰数和内生控制灰数。设 为待估计参数向量 则 按最小二乘法求解, 有: (5-3) 式中: (5-4) (5-5) 将(5-3)式求得的 代入(5-2)式,并解微分方程,有 (1,1)预测模型为: (5-6)(gray forecasting model called CM model, the G-gray of a letter, the M model for the first letter. GM (1,1), a band of a variable type of differential equation models. GM (1,1) is a sequence of single-band linear dynamic model, mainly for time series prediction. A GM (1,1) model series with a total value of observation for the cumulative production, to a new series of its elements (5-1) : The series, we can establish the prediction model albino form of equation (5-2) where :-- to question the estimated parameters. The development will be known as the gray and hygiene control within a few gray. Set parameters to be estimated according to Vector least squares method, are : (5-3) where : (5-4) (5-5) (5-3) that obtained in lieu of income (5-2)- and solutions differential equations, (1 1) Fore)
- 2005-01-26 15:33:02下载
- 积分:1
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PCA_face333342
主成分分析(PCA)算法是用于简化数据的一种技术,对于某些复杂数据就可应用主成分分析法对其进行简化。
- 2010-06-02 15:43:29下载
- 积分:1
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Hrz_Dist_with_x1_x2
It compute the separation between two plasma bubbles in all sky images. i.e. distance between two horizontal pixels in km.
- 2014-08-21 17:09:35下载
- 积分:1
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findellipse
hough变换检测椭圆,对于边缘图像的椭圆检测。(find ellipse by hough transform,used for edge image.)
- 2020-11-01 21:29:55下载
- 积分:1
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BeamModeFre
该程序用于求单跨梁振型及频率(梁的两端任意约束)(The procedure for seeking a single cross-Liang type and frequency (arbitrary constraints at both ends of beams))
- 2007-07-31 14:55:30下载
- 积分:1
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cdma-codec
CDMA二代移动通信的Matlab仿真程序段,运行良好。(CDMA second-generation mobile communication segment of the Matlab simulation program, run well.)
- 2009-12-28 20:26:27下载
- 积分:1
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McGraw.Hill.MATLAB.Demystified.Apr.2007
Matlab Demustified 2009 one of the best books
- 2009-07-15 21:07:03下载
- 积分:1
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gui_filter
matlab做的可视化界面,实现滤波器的自己设计,功能和自带的fdatool差不多,可是代码更好懂一些。有需要的可以看一下(Matlab do visualization interface to achieve its own filter design, and built-in functions fdatool almost, but to better understand some code. Need to see what)
- 2006-12-24 18:14:38下载
- 积分:1
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image-tag
MATLAB图像标记,可以对图像中的你感兴趣的区域进行提取和标记,为后续分析提供帮助,程序可运行(MATLAB image tag, the image of the region of interest you can be extracted and tag, provide help for subsequent analysis, program can be run)
- 2021-04-26 13:48:45下载
- 积分:1
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cenciMTI
对参差动目标检测(MTI)进行仿真研究,画出了其频率响应曲线,可以在源码中改动初始参数来得到想要的仿真(For mixed moving target detection (MTI) simulation study, draw the frequency response curve, the initial parameters can be changed in the source code to get the desired simulation)
- 2014-05-26 11:06:02下载
- 积分:1