نتایج جستجو برای: ensemble empirical mode decomposition

تعداد نتایج: 553616  

2012
LIJIE ZHAO JIAN TANG WENGRONG ZHENG

Reliable measurements of ball mill load parameters and reorganization of the operating statuses are the key factors for saving energy and optimization control. Empirical mode decomposition (EMD) and partial least squares (PLS) are used to analyze shell vibration signal and monitor mill load parameters of ball mill. The shell vibration signal is decomposed into several intrinsic mode functions (...

Journal: :IEEE Systems Journal 2022

The strong stochastic nature of wind power generation makes it extremely challenging to accurately predict and support the planning operation modern systems with significant penetration renewable energy. This article proposes a two-step prediction method, which consists two phases: long time-scale coarse short fine correction. In phase, complementary ensemble empirical mode decomposition-based ...

Journal: :IEEE/CAA Journal of Automatica Sinica 2022

Regional precipitation, as a very important component system of hydrology, plays key role in the whole water cycle [1]. The dramatic changes regional precipitation short period can easily have serious impact on local ecological environment and daily life. Short-term heavy refers to events with rainfall more than 20 mm one hour or 50 three hours [2].

2016
Ning Li Chilan Cai Caiping Liang

Knock is an undesirable event that causes most of the abnormal combustion in spark ignition (SI) engines. In this paper, a novel knock intensity diagnosis method for SI engines by vibration analysis based on the ensemble empirical mode decomposition (EEMD) is proposed. First, the vibration signal measured from the test SI engine cylinder head is decomposed by the EEMD. Because the EEMD can elim...

2009
Gastón Schlotthauer María Eugenia Torres Hugo Leonardo Rufiner

Empirical mode decomposition (EMD) is an algorithm for signal analysis recently introduced by Huang. It is a completely datadriven non-linear method for the decomposition of a signal into AM FM components. In this paper two new EMD-based methods for the analysis and classification of pathological voices are presented. They are applied to speech signals corresponding to real and simulated sustai...

2013
Liming Zhang

This paper introduces a new instantaneous frequency computation approach -Counting Instantaneous Frequency for a general class of signals called simple waves. The classsimple wave contains a wide range of continuous signals for which the concept instantaneous frequency has a perfect physical sense. The concept of -Counting Instantaneous Frequency also applies to all the discrete data. For all t...

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