hilbert transform 中文意思是什麼
hilbert transform
解釋
希伯特-
Time - frequency analysis of the first heart sound based on the hilbert - huang transform
變換的第一心音信號時頻分析 -
The ship radiated noise is analyzed and its 4 features are extracted from the envelop spectrum. the envelope of ship noise waveform can be demodulated utilizing hilbert transform, and the spectrum components with line rotation frequency of propeller shaft are extracted effectively by bispectrum, 1 ( 1 / 2 ) spectrum and 2 ( 1 / 2 ) spectrum analysis
對于通過希爾伯特變換解出的艦船輻射噪聲包絡信號進行高階統計量分析，有效地提取出了艦船噪聲的雙譜、 11 / 2維譜、 21 / 2維譜等方面的特徵。 -
Structural damage detection by hilbert - huang transform
變換的結構損傷診斷 -
Then, it deals with the theory of the finite element, experimental modal analysis and hilbert huang transform, which forms the theoretical groundwork of the following experimental investigation aiming at analyzing the effect of the transducer debonging on the dynamic response of composite laminated cantilever beam
再次，採用壓電元件做傳感器的復合材料懸臂梁結構為試驗對象，利用模態分析、 hht變換的方法，對壓電元件與復合材料之間的脫膠損傷對結構動態特性的影響進行試驗研究。 -
Research on faults diagnosis of gear wear based on hilbert - huang transform
變換的齒輪磨損故障診斷研究 -
There are two types of end effects in the empirical mode decomposition method : in the spline interpolation and in the hilbert transform
2經驗模態分解方法中，有兩種端點效應：在樣條插值中以及在希爾伯特變換中。 -
Generalized analytic signal based on fractional hilbert transform
基於分數希爾伯特變換的廣義解析信號 -
The paper is mainly discuss the gabor transform, hilbert transform and wavelet transform. through the analysis of gabor transform we can find that the amplitude of gabor transform is sensitive to reservior
關于解析信號的研究，本文主要以分頻gabor變換、 hilber變換和小波變換為主要研究內容。 -
Based on the analysis to fourier, wavelet and hilbert - huang transform, the application of hilbert - huang transform in the analysis of strong earthquake records is discussed with 60 strong aftershocks in jiji earthquake series
摘要在簡要地介紹比較了傅立葉變換、小波變換、希爾伯特黃變換理論的基礎上，針對集集地震大量強震記錄進行各種變換分析比較，以探求希爾伯特黃變換在強震記錄分析中應用的前景。 -
Each demodulation analysis technique has its merits and limitations. in this paper, the principal and limitations of the hilbert transform and generalized detection - filtering demodulation analysis are systematically studied
通過系統分析和對比現有幾種解調分析方法各自的優缺點，本文深入研究了希爾伯特變換和廣義檢波濾波解調分析技術的原理、局限性及其工程中的應用。 -
In the part of simulating the through signatures of the sound field of ship, it not only comes down to the application of time - frequency analysis methods, and the application of the architecture between processing and interpretation of signals, but also the application of the hilbert transform
其中，艦船聲場通過特性的模擬不僅涉及到了時頻分析思想和依頻譜模重構原始序列的迭代演算法的應用，還涉及到了希爾波特變換的應用。 -
Then, the hilbert transform is applied to each modal response to obtain the instantaneous amplitude and phase angle time histories. a linear least - square fit procedure is proposed to identify the natural frequency, damping ratios, physical mass, damping and stiffness matrices from instantaneous amplitude and phase angle for each modal response
然後對各階模態響應進行hilbert變換，得到瞬態幅值和相位角的時間歷程，再運用線性最小均方擬合來識別自然頻率、阻尼比、質量、剛度和阻尼矩陣。 -
As iec flickering measurement method can only be applyed to analyze stable flickering signals, this paper applies hilbert - huang transform, the latest time - frequency analyzing method, to deal with the non - stationary flickering signals
針對iec閃變測量方法僅適用於分析平穩閃變信號的不足，本文應用最新時頻分析方法hilbert - huang變換來分析非平穩閃變信號。 -
The phase information offered by hilbert transform can offer information of reserve in high precision. wavelet transform can analysis any detail of seismic data. the information pick up from wavelet transform is obverse high than hilbert transform and routine analysis
而hilber變換的相位信息可以提供高精度的薄互層信息，而小波分析可以對任意細節聚焦分析，其提取的三瞬信息明顯高於hilber變換變換和常規處理剖面。 -
Hilbert - huang transform spectrum and its application in seismic signal analysis
黃變換譜及其在地震信號分析中的應用 -
Spectrum analysis of heart sound signal based on hilbert - huang transform
心音信號小波變換分析研究 -
Firstly, a method to estimate the rotor speed, which is based on bp neural network, is introduced in this paper. secondly, the park vector approach is used to monitor and diagnose the inter - turn fault of the stator winding. finally, this paper studies thoroughly a novel approach to detect rotor bar breaking fault, which is based on the perfect combination of the hilbert transform and digital filter
具體工作如下：採用bp神經網路對異步電動機轉子轉速進行無速度傳感器估計；對定子繞組匝間短路故障，採用派克矢量方法進行監測與診斷；對于轉子斷條故障，詳細介紹了一種新的基於希爾伯特變換與數字濾波的在線監測方法。 -
In the recent years, as the proportion of mechanic industry in nation economy increases, the requirement for safe operation of mechanic equipment is higher and higher. due to that all kinds of technology are progressively applied to mechanic equipment fault and diagnosis, such as signal processing, pattern recognition, etc., mechanical equipment fault and diagnosis technology has been developed rapidly all over the world. the reciprocating pump as a part of mechanic equipment field takes up very important station in production department, such as the petrochemical industry. because its applications are very widely, making researchs about its fault and diagnosis has important meaning. though people have already made out some researchs and obtained some research results, but the total diagnosis level is not still very high. based on former research results, according to the strong non - stationary characteristic of the pump valve signal of the reciprocating pump, this text introduces hilbert - huang transform ( abbreviated as hht ), and diagnosed the pump valve faults of the reciprocating pump well
雖然人們已對其開展了不少研究並取得了一些研究成果，但總的診斷水平還不是很高。本文在基於前人研究成果的基礎上，根據往復泵泵閥信號的強非平穩特性，引入了希爾伯特-黃變換（簡稱hht ） ，對往復泵泵閥較好地進行了診斷。往復泵由於其結構復雜，激勵源多，故其信號為強非平穩信號，對其進行故障特徵提取和診斷比較困難，所以本文主要研究了往復泵泵閥振動信號的特徵提取方法。 -
Study on the problems in extracting instantaneous characters of signals based on hilbert transform
變換提取信號瞬時特徵參數的問題研究 -
A method using transient frequency based on complex - analytical - wavelet - transform, which combines hilbert transform with wavelet transform and possesses adaptive analytical ability, is proposed
該方法將希爾伯特變換與小波變換相結合，具有自適應分析能力。
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