
为什么EMD (EEMD)分解可以用于预测? - 知乎
1.1 什么是EEMD? EEMD(Ensemble Empirical Mode Decomposition)是一种信号分解方法,它旨在分解非线性、非平稳或非白噪声的信号,以揭示复杂信号的局部特征和周期性成分 …
EMD和EEMD对原始数据分解之后再进行重构的意义 ... - 知乎
安装上述思路进行t检验,发现在指标5处显著不为0,那么IMF1-4代表高频分量,IMF5-10代表低频分量。 此时我们再将高频分量、低频分量分别重构,就能得到数据的高频特征和低频特征。 …
Eastern Railroad Discussion > GE vs. EMD - Trainorders.com
The railroads obviously like GE's better than EMD's. A simple look at the specifications of GE and EMD locomotives shows that GE's lead in nearly all categories. The performance difference is …
EMD算法之Hilbert-Huang Transform原理详解和案例分析 - 知乎
文章由博客园网友 Mario-Chao的授权转载于"脑机接口社区" EMD算法之Hilbert-Huang Transform原理详解和案例分析在我们正式开始讲解Hilbert-Huang Transform之前,不妨先来 …
EMD分解信号后,怎么确定其IMF分量的对应因素? - 知乎
EMD分解信号后,怎么确定其IMF分量的对应因素? 例如故障诊断问题中,旋转零部件的振动信号通常是由多个因素共同作用下形成的。 那么利用EMD进行分解后,怎么确定分解出的IMF分 …
What happened to Electro Motive?
> and EMD assembly was moved to London, Ontario and > I believe it was the decision that GM made then > and GM's decision to sell EMD that were the poison > that have sickened EMD. …
Progress Rail considers complete closure of EMD LaGrange plant
Progress Rail, subsidiary of Caterpillar and owner of locomotive builder Electro-Motive, issued the following statement today, in which it announced that it is considering closing the Electro- …
Burlington Northern SD40-2s -- Part 1
The EMD SD40-2 is a 3,000-horsepower (2,200 kW) C-C diesel–electric locomotive built by EMD from 1972 to 1989. 4,029 units were produced. Wikipedia The Burlington Northern had 767 of …
Modern locomotive prices
A new locomotive costs more than twice that of a rebuilt locomotive, and while it is more modern, delivery can take up to 10 months. Prices back in 2001 were from about $1,500,000 for DC …
Most surviving F-units
Had someone pose a question to me and I got to wonder about the answer: What railroad has the most surviving classic EMD F-units? (FT through F9, including FP7, FP9 and FL9) I think …