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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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canedgefolder
for canny edge detection.
- 2012-05-02 04:12:22下载
- 积分：1
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FD_Higuchi
用Higuchi方法计算时间序列或波形的分形维数。(Higuchi method to calculate the fractal dimension for time series or waveform)
- 2021-04-21 14:28:49下载
- 积分：1
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huffman_matlab
可对.txt文本进行霍夫曼编码，并计算其压缩率(Can. Txt text Huffman code, and calculate the compression ratio)
- 2021-04-01 12:59:08下载
- 积分：1
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fenximonixinhaodefupintexin
1. 给定模拟信号：，式中，，。对进行采样，可得采样序列
选择采样频率=1 kHz，观测时间ms，观测所得序列及其幅频特性
改变采样频率=300Hz，观测此时的变化
令采样频率=200Hz，观测此时的变化
要求分析说明原理，绘出相应的序列及其它们对应的幅频特性曲线，指出的变化，说明为什么？(failed to translatefailed to translatefailed to translatefailed to translate)
- 2011-10-23 21:10:15下载
- 积分：1
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65832643MRFimage
本站以C语言和Java语言、嵌入式开发、算法实现为主.(IMAGE SIGNAL BLIND PROCESSING)
- 2014-11-26 12:03:14下载
- 积分：1
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MATLAByuyanjichu03
matlab 入门基础知识，数字图像处理系列入门教材系列之一(Basic knowledge of introduction to matlab, digital image processing one of series of introductory textbook series)
- 2013-11-13 00:04:11下载
- 积分：1
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RE28M1B29-Rachhpal-Singh
The demand of high data rate services has been increasing very rapidly and there
is no slowdown in sight. We know that the data transmission includes both wired
and wireless medium. Often, these services require very reliable data transmission
over very harsh environment. Most of these transmission systems experience much
degradation such as large attenuation, noise, multipath, interference, time variance,
nonlinearities and must meet the finite constraints like power limitation and cost
factor. One physical layer technique that has gained a lot of popularities due to
its robustness in dealing with these impairments is multi-carrier modulation technique.
In multi-carrier modulation, the most commonly used technique is Orthogonal
Frequency Division Multiplexing (OFDM)
- 2012-11-24 23:30:51下载
- 积分：1
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xaiopobao
一个非常有用的小波边缘检测源代码，matlab7a测试通过。(A useful source of wavelet edge detection, matlab7a tests pass.)
- 2010-07-07 17:30:04下载
- 积分：1
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ftt_exam
fAST FOURIER EXAMPLE
- 2011-06-03 00:14:24下载
- 积分：1
