頻率分析法 的英文怎麼說

中文拼音 [bīnlǜfēnxīfǎ]
頻率分析法 英文
analysis method of frequency domain
  • 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
  • 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
  • 析 : Ⅰ動詞1. （分開; 散開） divide; separate 2. （分析） analyse; dissect; resolve Ⅱ名詞（姓氏） a surname
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  • 頻率 : frequency; rate
  1. At the same time according to the low recognition rate in speech recognition system, the author used the method of fundamental frequency analysis to build male / female recognition model respectively

    同時針對語音識別系統中識別率不高的問題，採用基音頻率分析的方法分別建造男女聲識別模型。
  2. Resonance frequency analysis and solution of the electronic belt weigher

    電子皮帶秤的共振頻率分析及解決方法
  3. Standard test method for impedance and absorption of acoustical materials using a tube, two microphones, and a digital frequency analysis system

    管子雙擴音器和數字頻率分析系統用傳聲材料的阻抗和吸收的試驗方法
  4. Wavelet transform, which has a multi - resolution analytic character, is a time - scale ( time - frequency ) analytic method of information. moreover, as both of its time - window and frequency - window can be changed it processes the ability of expressing local characters of information in time - frequency domain

    小波變換是一種信號的時間尺度（時間頻率）分析方法，它具有多解析度分析的特點，而且在時頻兩域都具有表徵信號局部特徵的能力，是一種窗口大小固定不變但其形狀可改變，時間窗和頻率窗都可以改變的時頻局部化分析方法。
  5. In order to reduce the musical residual noise and the background noise, a speech enhancement method based on masking properties of the human auditory system is described. this method uses bark wavelet packet transform to simulate the frequency feature of human auditory model to get the threshold

    本文以最大限度減少殘留噪聲和背景噪聲為目的，採用bark子波分析的方法模擬人耳基底膜的頻率分析特性來進行語音增強，重點進行模擬人耳聽覺掩蔽效應來確定除噪閾值的研究。
  6. The bubbles in diesel engine fuel injection system are studied. the frequency structure of pressure wave with bubbles bursting ， as well as relation of types of bubbles and frequency spectrum ， is expounded

    採用頻譜分析法對柴油機燃油噴射系統中的汽泡進行了研究，分析了汽泡潰滅造成壓力波振蕩的頻率結構特性，並論述了汽泡與壓力波及其頻譜的關系。
  7. Study of analysis of instantaneous frequency in partial wave method

    論局域波法中瞬時頻率分析
  8. Based on the theoretic method, minjiang plain is divided into regions by flood risk using the method of hazard frequency analysis is developed

    在理論分析的基礎上，結合岷江成都平原洪水風險分析的具體研究項目，運用水災頻率分析方法進行了洪水風險區劃的研究。
  9. And used this standard ( large than ex + 3 x x ) to estimate the design sub stage maximum tidal levels using the frequency analysis. an improved method to deduce design tidal level process is put forward, using both designs maximum anneal tidal level and design maximum annual tidal range

    探討了不同參數估計方法下如何判別特大值，並用得到的判別標準（大於ex + 3 x ）對修正後的分期最高潮位序列進行頻率分析確定了分期設計最高潮位。提出了以設計年最高潮位和設計年最大潮差共同控制典型潮位過程放大的設計潮位過程推求方法，使設計潮位過程的推求更趨合理。
  10. The results show this approach is effective when there is massive cloud cover on the remote sense image. wavelet analysis is internationally recognized up to the minute tools for analyzing time - frequency. it is chiefly due to the " adaptive feature " and " mathematical micro - telescope feature "

    小波分析是目前國際上公認的最新時間-頻率分析工具，由於其「自適應性」和「數學顯微鏡性質」而成為許多學科共同關注的焦點，本文利用小波改善傳統數字圖像處理方法，取得了一定效果。
  11. By vibration measurement and order proportion spectrum frequency analysis for high rotation speed reciprocating compressor pipe network, vibration causes are searched out, reducing vibration methods and treatment measure are established, after improvement, high vibration amplitude value is reduced greatly for pipe network

    摘要對高速往復壓縮機管網振動進行了測試和階比譜頻率分析，找出了振動原因，確定出實際可行的減振方法和處理措施，經過改造后的機組，原振動較大點幅值得到大幅度降低。
  12. Compaction, frequency - analysis

    頻率分析緊湊法
  13. Application of stochastic simulation technique to frequency analysis of regional drought

    隨機模擬方法在地區乾旱頻率分析中的應用
  14. A new phase unwrapping algorithm is presented and is applied to ftp and pmp in this paper

    本文提出了一種基於條紋頻率分析的位相展開新演算法並將其應用於ftp和pmp中。
  15. The current control approaches are based on frequency domain methods such as pid control which assumes linear time invariant system dynamics. the advantages of these approaches are simplicity and ease of stability and robustness analysis. however, the decrease in performanc e and poor efficiency translates to additional payload and cannot meet the demand of current spacecraft control

    當前飛行器主要的控制方法是基於近似時不變線性系統的頻域分析法（如pid控制） ，這種方法的優點是簡單且易於穩定性和魯棒性分析，但它所達到的低性能和低效率卻轉化成了飛行器控制過程的附加載荷，還遠不夠滿足當前飛行器控制的要求。
  16. Wavelet transformation is a time - scale and time - frequency signal analysis. it has many desirable properties, and has been widely applied in many fields

    小波分析是一種信號的時間? ?尺度分析和時間? ?頻率分析方法，它具有很多優良的特性，在實際工程中得到了廣泛的應用。
  17. The mode number and the frequencies range, which were considered during calculating the wind - induced responses of large cantilevered roof by using the method of frequency domain, were analysed and discussed, according to the results of wind tunnel tests of bahamas and guinea stadium grandstand cantilevered roofs, and the rules that rms displacement and rms internal force responses under strong wind force changing with participant modes number and frequencies range were obtained, and which could be explained from the point of wind pressure power spectrum densities of the measured points on surface of the roof

    摘要根據援巴哈馬體育場和援幾內亞體育場主看臺懸挑屋蓋風洞試驗數據結果，分析和探討了採用頻域分析法計算大跨度懸挑屋蓋風振響應時應考慮的結構模態數和頻率范圍，得到強風作用下懸挑屋蓋結構均方根位移與內力響應隨參與計算的模態數和頻率范圍的變化規律，並從屋蓋表面測點風壓譜密度的角度解釋了這種變化規律。
  18. Sthe azimuth resolution characteristics for different deployments of the antennae ’ irradiation mode is discussed clearly through analyzing the doppler history of the echoed signal based on the platforms " motion features and antennae " irradiation rules

    根據收、發載機平臺的運動特點和天線波束在觀測場景平面內的照射規律，本文採用多普勒頻率分析的方法詳細討論了發射、接收天線採用不同照射配置方式時系統的方位向分辨特性。
  19. 1. 2. using different theory, especially the density function theory, we calculated the geometris of the ( no ) 2 - and harmonic vibrational frequency. the results indicate that there are seven stable doublet states

    在各種計算方法的基礎上，特別是各種dft方法，對（ no ） _ 2可能存在的構型進行了尋找，幾何優化並結合振動頻率分析表明，存在7種可能的穩定構型。
  20. In large rotating machinery using filmatic bearing ( turbogenerator, air compressor, etc. ) there is a potential trouble from impefect installation or running conditions, a metals " contact between rotors and shells. the trouble is usully called rubbing. the advantage of ae technologe in the rubbing diagnosis and early detection is showed. instead of classical ae characteristic parameters ( counts, amplitude, energy, duration and the other ones ) a new feature extraction by frequency analysis of ae envelop signals is discussed. both research of ae process and field experements indicate that periodic components in the envelop spectrum related to rotational speed increase evidently at the beginning of rubbing production, hence are highly sensitive to the rubbing fault diagnosis. according to the new design an acoustic emission equipment for the rubbing diagnosis named buaa ae testing system is developed and described

    汽輪發電機、空氣壓縮機等採用油膜支撐的大型轉動機械，由於安裝或運行中的原因，在轉子旋轉過程中，可能和器壁發生輕微的摩擦和碰擊，簡稱碰摩.聲發射技術在碰摩發生特別是故障早期診斷上有優越性.本系統的特點是沒有沿用傳統的計數、幅度、能量和持續時間等聲發射特性參數，而是在聲發射包絡信號的頻率分析中進行特徵提取.聲發射發生的過程分析和現場試驗都表明這種方法對碰摩檢測很敏感，在碰摩發生的起始階段，包絡譜中與轉速同步的周期性分量顯著增加.根據這種新的設計思想自行研製了buaa碰摩聲發射檢測儀並對此作了介紹
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