line frequency components 中文意思是什麼
line frequency components
解釋
行頻分量- line : n 1 線；繩索；釣絲；測深度用繩，捲尺。 a fishing line 釣魚線。 be clever with rod and line 會釣魚...
- frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
- components : 部件
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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。 -
Typically caused by distortions to the frequency components below the horizontal line frequency
它沿水平方向逐步擴展，通常是由低於行頻的頻率畸變造成的。 -
Key components in the insulation line : high precision extrusion crosshead with automatic centring produced by swiss unitek, o. d. meter, centrifugal tester, h. f. spark tester, capacitance tester provided by uk beta co., frequency converter, temperature controller, plc and bearing from simens in germany and mitsubishi injapan
生產線選用的主要關鍵器件：擠出機頭採用瑞士unitek公司的高精度自動定心機頭；外徑測試、偏心測定、高頻火花、電容測試等均採用英國beta公司的高精度儀器；而且擠出機的變頻器、溫控器、 plc和軸承等均採用德國西門子公司和日本三菱公司的產品。 -
In this paper, the important point is the study about the application of wavelet analysis in single phase grounding fault location of small current grounding power systems, wavelet transform is used as a novel tool of signal analysis to obtain useful fault transient components, a new criterion of fault line selection is constructed based on the time and frequency localization character of wavelet transform
本論文主要研究了小波分析在小電流接地系統單相接地故障定位中的應用，利用小波變換這一新興的信號分析工具，提取故障時的暫態電量信息，構造出了基於小波變換模極大值奇異性檢測原理的新型選線判據。
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