波周期 的英文怎麼說

中文拼音 [bōzhōuqī]
波周期 英文
period of wave
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 周 : Ⅰ名詞1 （圈子; 周圍） circumference; periphery; circuit 2 （星期） week 3 [電學] （周波的簡稱） c...
  • 期 : 期名詞[書面語]1. （一周年） a full year; anniversary 2. （一整月） a full month
  1. Aperiodic speed fluctuation

    非周期性速度波動
  2. Based on the analysis of the beat frequency signal, the expression of the beat frequency phase is deduced. the expression indicates physics meanings of quantities to be detected and supplies theoretical bases for detection methods. by using two - dimensional fft, the range and velocity information of target is got out from the echo. according to the periodicity range ambiguity of symmetrical pulses in fmpcw, the processing method of sliding time window is used

    通過對差頻信號進行的分析，得出了差頻相位的具體表達式，表現出了要檢測的各量的物理意義，對檢測的方法提供了理論依據。利用二維fft方法，可以有效地提取回波中目標的距離與速度信息。對于fmpcw信號由於均勻脈沖產生的周期性距離模糊的問題，採取時間波門的處理方法。
  3. Yet the march 1979 burster, with an apparent rotation period of eight seconds, was spinning much more slowly than any radio pulsar then known

    但1979年3月那次的爆炸源，看起來卻有八秒的周期，自轉速率要比當時所知的任何波霎還要慢得多。
  4. Analysis of the causes of business cycle in real estate

    房地產周期波動成因分析
  5. This part is divided into two chapters : in chapter one, after brief description of essential concepts of business cycle fluctuation, it comes to the learning conclusion that there has been a study of main theories in the theory circles in accordance with the earlier business cycle theory, keynesslism ' cycle theory and new classicalism ' theory

    該部分內容由以下兩章構成：第1章在簡要提出經濟周期波動一般概念的基礎上，按早期經濟周期波動理論、凱恩斯主義經濟周期波動理論和新古典主義經濟周期波動理論等三大階段，歸納出現有主要經濟周期波動理論的研究結論。
  6. The periodic buckling leaves the fibre in a waved conformation.

    周期性的彎折在纖維中造成波形構成。
  7. The initial vsd process uses two main characters, the average instantaneous energy and the average instantaneous zero crossing rate ( zcr ). to make the first recognition for the start and the end, the emphasis of which is to select the appropriate value of the threshold and the length of frame. in the final vsd process, the author compares several characters and confirms the new recognition character

    初步分段過程使用了能量和過零率這兩個主要特徵進行端點檢測，重點是合理選擇兩個重要參數? ?門限和統計幀長度的取值；在最終分段過程中，筆者首先通過比較幾種特徵的識別效果，選擇卡爾曼濾波參數作為再次分段的識別特徵，還提出了一種新的識別特徵? ?周期性緩變特徵，使用這兩個特徵分別在子語音段內進行端點檢測。
  8. Periodic cusp wave solutions and single - solutions for degasperis - procesi equation

    方程的周期尖波解和單孤子解
  9. These two measures of cyclical variation, percent of trend and relative cyclical residual, are percentages of the trend.

    度量周期波動的兩個量--趨勢百分數和相關周期余數，都以趨勢值的百分比表示。
  10. Based on the speech produce model, we find the reason of periodicity disappearance and the extremum number increase by analysing the character of speech signal when the glottal closes

    於是從語音產生模型入手，詳細的分析了聲門閉合時刻語音信號的性質，找到了濁音信號經過小波變換後周期性消失、極值點個數增多的原因。
  11. The group velocity ( u ) corresponds to the net result from the addition of all elements with different periods and different velocities within the wave motion

    而群速度（ u ）符合於波動的不同周期，不同速度的各種因素疊加的凈結果。
  12. The numerical results show that the time domain response of the laminated plates induced by the in - line force of non - steady component oscillating flow is similar to harmonic motion with certain ribbon which is formed by period motion

    計算結果表明，零均值流量脈動流順流向作用力誘發反對稱角鋪設層合板的時域響應近似於具有一定帶寬的諧波運動，而這一帶寬又是由一定周期運動形成的。
  13. The seismic signals detected enabled the determination of the epicentres of intense earthquakes when analysed with data obtained by seismographs in other countries. the long - period seismometer now in use at the hong kong observatory headquarters has been in operation for nearly 50 years, since the international geophysical year of 1958

    香港天文臺計劃明年購置一臺寬頻地震儀取代長周期地震儀，令地震波的分析及地震定位更精確，亦可收集更豐富的地震數據供建築工程界使用，寬頻地震儀對0
  14. It is capable of detecting the value of both the fluctuation voltage and the fluctuant power

    該方法可檢測出每個調幅波周期中的電壓波動值，並且能計算波動功率。
  15. In this paper, a method assessing harmonic impedance by synchronously layered distortion waves is proposed, which is based on the " fluctuations method " - a simple and effective means. however the method is based on the fourier transform, which can just precisely analyze the signals whose cycle is integer times as broad as that of fundamental wave. with sampling windows widening, the variations of distorted signals in a fundamental period are weakened

    本文是以一種被廣泛採用的非干預式諧波阻抗估計方法? ? 「波動量」法，的基礎上，針對現有方法以直接的fourier變換為分析工具，只能對基波周期的整數倍窗口采樣信號進行分析，畸變信號在一個基波周期內的變化隨采樣窗口增大而被弱化，並且，諧波次數越高，解析度就越低，大大限制了諧波阻抗估計的準確性的提高。
  16. The higher modes have shorter periods than the fundamental mode and, moreover, they have higher velocities.

    高振型波比基階振型波周期短，波速高。
  17. Calculations indicate that the carrier phase takes effect till the time width of the pulse envelope becomes smaller than the period of the carrier oscillation, and the interpretation of this phenomenon is also presented. it is the difference between phase delay and group delay that causes the sliding between the carrier and the envelope

    數值分析的結果表明，當脈寬小於光波周期時，相位的作用開始顯現出來，當脈寬比光波周期長時，載波相位的作用可以忽略，並分析了相位起作用的原因，用解析的方法說明正是相延遲和群延遲之間的差別造成了光載波在脈沖包絡下的滑動。
  18. Having a pitch corresponding to a relatively small number of sound - wave cycles per second

    低音的與一相對少量的每秒鐘音波周期相對應的低音的
  19. Significant wave period

    有效波周期
  20. The wave period in shallow water keeps constant, but the decrease of wave length must be calculated by alternative method

    摘要淺水波周期保持常值，而波長縮減時其計算需進行迭代。
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