翻訳と辞書 Words near each other ・ Hilbert matrix ・ Hilbert metric ・ Hilbert modular form ・ Hilbert modular surface ・ Hilbert number ・ Hilbert operator ・ Hilbert Philip Zarky ・ Hilbert plane ・ Hilbert projection theorem ・ Hilbert R-tree ・ Hilbert scheme ・ Hilbert Schenck ・ Hilbert series and Hilbert polynomial ・ Hilbert Shirey ・ Hilbert space ・ Hilbert spectral analysis ・ Hilbert spectroscopy ・ Hilbert spectrum ・ Hilbert symbol ・ Hilbert system ・ Hilbert transform ・ Hilbert van der Duim ・ Hilbert Van Dijk ・ Hilbert Wildlife Management Area ・ Hilbert's arithmetic of ends ・ Hilbert's axioms ・ Hilbert's basis theorem ・ Hilbert's eighteenth problem ・ Hilbert's eighth problem ・ Hilbert's eleventh problem Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Hilbert spectral analysis ： ウィキペディア英語版 Hilbert spectral analysis Hilbert spectral analysis is a signal analysis method applying the Hilbert transform to compute the instantaneous frequency of signals according to :$\backslash omega=\backslash frac.\backslash ,$ After performing the Hilbert transform on each signal, we can express the data in the following form: :$X(t)=\backslash sum\_^a\_j(t)\backslash exp\backslash left(i\backslash int\backslash omega\_j(t)dt\backslash right).\backslash ,$ This equation gives both the amplitude and the frequency of each component as functions of time. It also enables us to represent the amplitude and the instantaneous frequency as functions of time in a three-dimensional plot, in which the amplitude can be contoured on the frequency-time plane. This frequency-time distribution of the amplitude is designated as the Hilbert amplitude spectrum, or simply Hilbert spectrum. Hilbert spectral analysis method is an important part of Hilbert–Huang transform. == References == *Alan V. Oppenheim and Ronald W. Schafer, "''Discrete-Time Signal Processing''," Prentice-Hall Signal Processing Series, 2 ed., 1999. *Huang, et al. "The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis." ''Proc. R. Soc. Lond. A'' (1998) 454, 903–995 ((Link )) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hilbert spectral analysis」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.