short-period frequency 中文意思是什麼

short-period frequency 解釋
短周期振動頻率
  • short : n 蕭特〈姓氏〉。adj 1 短的；短暫的。 （opp long）。2 矮的；低的 （opp tall）。3 短期的。4 簡短的...
  • period : n 1 時代；期；時期；期間；階段。2 〈the period〉現代，當代。3 周期；【地質學；地理學】紀。4 終結...
  • 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。
  1. 3 using current injecting frequency modulation method and modulating sine wave around the resonator point, the lock - in phenomena is observed in a comparatively short period of time. this has achieved the basic goal for a closed loop r - fog

    3 、採用電流注入法，在諧振點附近進行正弦調制，實現了對諧振點的短時間鎖定，達到了閉環光纖陀螺設計的首要基本要求。
  2. It was demonstrated that this sort of load - control apparatus has superior performance. we used a electric transmitter as the transducer to collect the sound signal, using the daq toolbox of the matlab to achieve the collection of the sound signal, and using the dsp toolbox of the matlab and the sound - launch technology to analyze the time - domain characteristic and the frequency - domain characteristic of the signal, chiefly analyze its short - time average amplitude, its short - time over - zero ratio and its estimate of the power chart and the average - period chart

    實驗中使用了駐極體話筒作為球磨機聲音拾取傳感器，利用matlab中的數據採集（ daq ）工具箱實現對磨音的採集，利用matlab信號分析（ dsp ）工具箱和聲發射技術對磨音進行時域和頻域分析，主要分析磨音的短時平均幅度和能量、短時平均過零率、功率譜估計和平均周期圖。
  3. Fourier transform cannot offer entire information of signals, namely frequency information presenting to any period of time cannot be confirmed on earth. although, short time fourier transform can obtain local information, it is difficult to find a " good " time window to fit for every period of time

    傅立葉變換不能提供信號完全的信息，即不知道頻率信息究竟出現在那些時間段上；短時傅立葉變換雖然可以獲得局部信息，但是對於一個時變的非穩定信號我們很難找到一個「好的」時間窗口來適應各個時間段。
  4. The first class methods are the classical frequency domain - based equivalent system methods ( f - esm ) which recommended by mil - f - 8785c and mil - std - 1797a. five longitudinal low order equivalent systems and fourteen lateral ones are discussed in detail and some pieces of advice are given. also conduct an investigation in the time domain - based equivalent system methods ( t - esm ). and for longitude short period movement, two least square ( ls ) identification methods of estimating its parameters are studied

    研究了求取高增穩飛機的低階等效系統的幾種方法：研究了經典的頻域等效系統方法，針對縱向5種、橫向14種構型的低階等效系統進行了擬配實踐，並提出一些有益的看法；以頻域等效系統方法為基礎，提出了時域等效系統新方法；以最小二乘辨識為基礎，提出了兩種縱向短周期低階等效系統時域辨識方法（等效延遲時間_ q參與或不參與） 。
  5. Simultaneously, along with market acute competition, the fashion period of textile industry is getting shorter and shorter, it is a remarkable trend for modern textile manufactures to pursue zero stock, short period, small batch, high frequency and quickly delivering

    同時，紡織行業時尚流行的周期變得越來越短，市場不確定性增加，個性化、短周期、小批量、高頻率、快速交貨和追求零庫存成了現代紡織製造業的顯著趨勢。
  6. As the wing - pivot frequency decreases, it couples with the vehicle short - period mode resulting in dynamic instability. a similar instability sometimes occurs when the pivot mode couples with the fuselage - bending mode

    隨其頻率降低，它與飛行器短周期模態耦合時會導致飛行器動不穩定，而與機身彎曲模態耦合時同樣會導致模型動不穩定性。
分享友人
分享到 Line

分享到臉書