-
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
-
crystal
Matlab file for calculation parametrs of crystals.
- 2009-05-19 20:27:27下载
- 积分:1
-
helpful
sieata能带画图脚本,用于石墨烯的项目,画能带,态密度,计算带系(sieata band drawing script for graphene projects, drawing energy band, density of states, calculated with the Department of)
- 2011-05-11 09:50:21下载
- 积分:1
-
Spectro
A very simple programe to analyse the Barkhausen noise
- 2012-05-27 19:49:48下载
- 积分:1
-
IEEE-802.11-standarts
matlab code for 802.11a
- 2013-04-02 15:33:44下载
- 积分:1
-
code
matlab代码 多径效应的通信原理仿真类型题目 二十径添加高斯噪声的效应(matlab code)
- 2013-04-09 20:39:15下载
- 积分:1
-
hht
这个程序是用希尔伯特黄变换HHT求取信号的时频谱与边际谱代码。(This procedure is used Hilbert Huang Transform HHT strike when the signal spectrum and marginal spectrum code.)
- 2015-03-14 16:39:40下载
- 积分:1
-
ERS
Fast calculation of elastic response spectra
- 2014-01-10 16:28:43下载
- 积分:1
-
sudu
INS/DVL 组合导航 已收敛 有贯导就、四元素解算 航姿校正(INS/DVL integrated navigation convergence has consistently guide on the four-element solver AHRS correction)
- 2020-12-29 19:39:01下载
- 积分:1
-
T_SAR_Wang
是王志添教授关于卫星雷达技术的介绍,对于做SAR,包括INSAR、POLSAR等的人来说是非常好的资料!(SAR)
- 2010-08-25 21:53:56下载
- 积分:1