頻率成分 的英文怎麼說

中文拼音 [bīnlǜchéngfēn]
頻率成分 英文
frequency component
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 成 : Ⅰ動詞1 （完成; 成功） accomplish; succeed 2 （成為; 變為） become; turn into 3 （成全） help comp...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 頻率 : frequency; rate
  1. Based on vibration principle, the paper establishes dynamics analysis model of output shaft with elastic support, according to fourer series spread principle of periodic function, the dynamic response formula is derived by separating complex vibration force into sum of many simple harmonic excitation function of whole number times frequency relations. the result shows that response of both sides support is synchronous when load distribution non - uniform coefficient is 1

    依據振動理論建立了具有彈性支撐的輸出軸的動力學分析模型，根據周期函數的傅里葉級數展開原理，將復雜的激振力分解成為多個頻率成整倍數關系的簡諧激勵函數，導出了動態響應表達式，結果表明，當載荷分配不均勻系數為1 . 0時的輸出軸兩端支撐同步。
  2. The heterogeneous nature of rock and soil would prohibit recording the very high-frequency components present in the pulses.

    巖石與土壤的不均勻性質有礙于記錄脈沖中很高的頻率成分。
  3. This dissertation focuses on the application of data fusion in two - phase flow regime identification. following is the main contribution of the dissertation. 1 ) based on quartile and first order differential, a new outlier detection algorithm is presented, experiments show that the method combining with low pass filter can remove gross error and unwanted frequency components

    本文的主要工作與創新點在於： 1 ）將分位數方法與一階差分法相結合，提出了一種基於一階差分的粗差剔除方法，該方法與低通濾波器的結合可以有效去除兩相流壓力波動信號中的粗大誤差以及信號頻帶以外的頻率成分。
  4. The paper decomposes the visitor ' s flow sequence made of different frequencies into the low and high frequencies in the multi - resolution analysis according to the characteristic of visitor ' s flow sequence frequencies and then restores the trend components according to the reconstruct principle of wavelet coefficients, in order to deduce the visitor ' s flow trend

    摘要根據旅遊流量的頻率分佈特性，運用小波分析將不同頻率成分組成的時間序列分解成低頻和高頻成分，然後依據小波系數的重構原理還原時間序列的趨勢成分，判斷旅遊流量時間序列的趨勢變化。
  5. Because engine noise takes on complicated frequency characteristics, if original noise signal is not collected, the noise control effect will not be evident

    由於發動機噪聲的頻率成分比較復雜，如果採用主動降噪技術不能適時採集到源噪聲信號，就達不到理想的降噪效果。
  6. It is found that there is a competition among the modes such as tm _ ( 01 ), tm _ ( 11 ) and tm _ ( 21 ) because of their similar work frequency in the experiment of rbwo with a coaxial structure, then tm _ ( 01 ) mode couldn ’ t work steadily. after shaping rectangular slot in the inner - conductor, the space between modes is enlarged, tm _ ( 01 ) mode would work steadily

    在同軸返波管的實驗中發現:模式tm _ （ 01 ） ， tm _ （ 11 ）以及tm _ （ 21 ）的工作頻率十分接近，存在模式競爭問題，使得tm _ （ 01 ）不能成為穩定的工作模式，但在同軸返波管內導體加矩形開槽后，發現模式之間的間隔增大，從而使tm _ （ 01 ）成為穩定的工作模式。
  7. In the single - photon resonance case, for large area input pulses, the spectral components oscillating around 32 appears in the spectrum due to the strong secondary excitation making the two - level model invalidity and the multi - level model should be used to describe this molecule

    在單光子共振情況下，即入射脈沖頻率等於1 、 2能級之間的共振頻率，對大面積入射脈沖，由於強的二次激發的作用，電場頻譜中出現了在32附近振蕩的頻率成分， 32是2 、 3能級之間的共振頻率，說明對大面積入射脈沖二能級模型已經失效，需要採用多能級模型來描述分子介質。
  8. From theoretical analysis, we know the existing demodulation methods have limitations as following : one is that the subtraction of the two signals frequencies will display as the result of demodulation when we demodulate two time - domain adding signals without modulating information ( fault information ) ; the other one is that aliasing phenomenon will occur as a result of getting absolute value, detection or square in the process of generalized demodulation analysis, such phenomenon will result in some superfluous frequency composition on the frequency spectrum, which will puzzle the detec tion of mechanical vibration. if the sampling frequency is selected from a suitable range, the aliasing phenomenon will be avoided ; the last one is that aliasing frequencies will be produced in zoom demodulation analysis because this algorithm cannot employ digital low - pass filtering to avert the folding frequencies of higher harmonics in the process of zoom sub - sampling

    現有的解調分析方法存在以下三種局限性：將不包括調制信息（故障信息）的兩時域相加信號，也以其頻率之差作為解調信號而解出；廣義檢波濾波解調分析中，由於取絕對值、檢波或平方過程可能產生混頻效應，在解調譜中表現為無法分析的頻率成分，並由此推導出避免這種混頻現象的采樣頻率的選取范圍，從根本上避免此類誤診斷的產生；幾種細化解調分析新演算法中，因為無法在細化分析的選抽時進行數字低通濾波，有可能會出現調制頻率的高次諧波成分發生頻率混疊而反折到低頻部分的現象。
  9. It is verified the time harmonic wave propagation consists of a incident wave and a reflected wave ( even if by circuit theory of abcd matrix of r, l, c )

    驗證傳輸線上各頻率成份弦波電壓及電流之沿線分佈（電路矩陣模式解）為入射波與反射波所合成。
  10. The complex resonance frequency underlying in late - time scattering components of a conducting target is independent of waveform and polarization of the incident wave, as well as the direction of the target relative to radar. it is a unique aspect independent quantity so far used to characterize target physical structure and component

    目標的后時響應中包含的自然諧振頻率成分（極點） ，不依賴于雷達發射電磁波波形、和其極化形式，與目標對雷達的取向無關，具有目標姿態不敏感性。
  11. By analyzing the principle of traveling wave, this paper point out that the traveling wave of the rotational motor generates by two same types and frequencies standing wave superimposition, while the traveling wave of the ring - type motor degenerates by two standing wave of extremely approaches in frequencies

    通過分析行波產生的原理，指出旋轉型馬達的行波是由兩個同型同頻的駐波疊加而成，而長環型直線馬達的行波是由兩個模態頻率十分接近的駐波疊加而成。
  12. The ann use bp algorithm with training by teacher. this method need not pick obviously up character from the system model structure

    該方法不需要對診斷系統建立模型結構，利用頻率成分的能量變化來識別不同的模式。
  13. The method uses frequency components of the marks and the corresponding amplitudes as the indexes for the quantitative evaluation, which can be obtained directly from the surface roughness measurement system

    此法以振紋之頻率成分及其振幅為量化之指針，其值可直接由三維表面粗度量測系統求得。
  14. This is fairly commonly utilized, and affects the line frequency component ( and odd harmonics )

    這種作法已經被廣泛應用，並可以用以改善市電頻率成分（包括奇次諧波。 ）
  15. A new envelope demodulation method based on empirical mode decomposition ( emd ) is proposed to make up the limitation that meaningless frequencies often arise in the envelope spectrum of conventional envelope demodulation method

    摘要提出了一種新的調制信號解調分析技術，來抑制傳統的包絡解調方法中經常出現的無意義的頻率成分。
  16. The method of bispectrum reconstruction detects fracture zones by learning the difference of frequency components because fracture can change the frequency components of seismic responses. the theory of time - frequency analysis computes the difference in the gradient direction of time - frequency spectrum

    雙譜重構的方法就是根據裂縫會改變地震波頻率成分的基本想法，通過求取具有不同頻率成分的地震波的差異來實現對裂縫發育帶的檢測的。
  17. The research of active noise control is comprehensive, but in most cases it is used on single frequency equipment

    摘要主動噪聲控制研究雖然比較多，但大多數集中在頻率成分比較單一的設備上。
  18. Linear frequency - modulated ( lfm, chirp ) signal that is often applied in radar, sonar and communications system is nonstationary signal, in which the frequency varies with time

    應用於雷達、聲納和通信等信息系統中的線性調頻（ lfm ， chirp ）信號是非平穩信號，即頻率成分是隨時間變化的。
  19. However, wavelet analysis has the excellent time - frequency local performance, it can detect the different frequency components of the fault signals by its adjustable time - frequency window

    小波變換作為一種時頻分析方法，它在時頻域都具有表徵信號局部特徵的能力，能通過時頻窗的靈活變換宋突出信號的不同頻率成分。
  20. However, high - speed data transmission system suffers from time - variant multi - path fading and inter - symbol interference ( isi ). as a solution, adaptive equalization can effectively combat isi by compensationg for channel distortation

    隨著數據率的提高，通道呈現出頻率選擇性，信號的一些頻率成分將產生深度衰落，產生碼間干擾（ isi ） ，影響系統的性能。
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