相干函數 的英文怎麼說

中文拼音 [xiānggānhánshǔ]
相干函數 英文
coherence function
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 干 : 干Ⅰ名詞1 （事物的主體或 重要部分） trunk; main part 2 （幹部的簡稱） short for cadre Ⅱ動詞1 （做...
  • 函 : 名詞1. [書面語] （匣; 封套） case; envelope 2. （信件） letter 3. （姓氏） a surname
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 相干 : 1 （多用於否定句或疑問句） have to do with; be concerned with 2 [物理學] coherent; 相干散射 coher...
  • 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
  1. Initial growths of disturbances are measured by means of hot - wire anemometry. due to the detected signals with low signal to noise ratio, the coherence function is used to eliminate background noise during data reduction

    在擾動增長的初始階段，信號的信噪比非常地低，根據相關譜分析方法，應用相干函數，將擾動信號有效地提取出來，測量了初始擾動的增長。
  2. Effect of site condition on coherency function of ground motion

    場地條件對地震動相干函數的影響
  3. Numerical simulation of ground motion coherency function on engineering site

    工程場地地震動相干函數的數值模擬
  4. Then analyze typical noises of the network based on bispectrum, get the wave characteristics according to bi - coherence function, and carry on the clustering analysis based on self - organizing feature mapping, so it realizes the clustering identification of the typical noises of medium - voltage power line

    而後對電網的典型噪聲進行雙譜分析，並通過雙相干函數提取其波形特徵，利用自組織特徵映射神經網路進行類聚分析，從而對特定中壓配電網的各種電網噪聲干擾進行分類識別。
  5. The inconsistent excitation can be decomposed into a series of irregular incident waves in terms of the spectral decomposition scheme of the hermitian matrix, with which the coherency function of the ground motions under the inconsistent excitation can be obtained numerical results are given to show its stability and rationality

    該方法將隨機輸入下的波動分析問題轉換為多個虛擬激勵下的確定性波動分析組合問題，從而可以方便地獲得場地波動觀測量之間的譜密度矩陣，進而計算給出工程場地的地震動相干函數本文還用數值模擬的辦法對所提出方法的合理性和穩定性進行了探討。
  6. Propagation of cross - correlation function in divided - wavefront interferometry

    分波前干涉法中空間互相關函數的傳輸
  7. The signal process function of the software include these function : digital filter, windowing, auto - correlation function and cross - correlation function, mean and variance, probability density function and probability distribution function statistic ; auto - power spectrum, cross - power spectrum, frequency response function, coherence function, cepstrum analysis based on fft ( fast fourier transfer ) ; joint time - frequency analysis based on stft ( short - time fourier transfer )

    軟體的處理功能包括：數字濾波、時域加窗、自相關與互相關處理、均值和方差計算、概率密度和概率分佈函數計算；在快速傅立葉變換（ fft ）基礎上計算自功率譜、互功率譜、頻率響應函數、相干函數、倒頻譜分析；基於短時傅立葉變換（ stft ）的聯合時頻分析等。
  8. The various functions inside the virtual spectrum analyzer introduced in the paper is time domain wave analysis, fft transfer, ifft transfer, cross analysis, and so on, which are all described in function controls. finally, this paper introduce the assemble of intelligent controls - oriented virtual instrument. and use classical signals and industrial practices to demostrate the accurate of virtual spectrum analyzer

    本文介紹的智能控制項化頻譜分析儀所具備的功能，有信號的時域分析、 fft變換以及ifft反變換、信號的微積分運算、信號的頻譜分析、信號自功率譜密度函數計算、信號互功率譜密度函數計算、頻率響應函數計算和相干函數計算，都是集成在功能控制項裏面的。
  9. Under the condition of " comparatively weak correlation between the two noises involved, coherence function is used as a frequency domain amplification factor for improving snr of the output signal to the filter and the speech enhancement effect. meanwhile, a real - time recursive algorithm is put forward in substitute for current algorithms based on short time fourier transform. the new algorithm will simplify computations and will be suited for real - time implementation together with the adaptive systems

    接著針對上述nanc系統兩路輸入信號噪聲相關性弱的情況，用相干函數作頻域增益因子來提高輸出信噪比與改善語音增強效果，同時，通過一種實時迭代演算法解決了短時傅氏變換計算量大的問題，簡化了計算，便於實時處理與實際應用。
  10. We analyzed its nature of resolving coherent sources and compared the influence of different focusing matrices. simulations are conducted to test the performance of these focusing matrices. 4

    分析了cssm方法分辨相干源的實質，即通過頻域平均消除了相關函數矩陣的奇異性；分析比較了幾種不同聚焦矩陣對演算法性能的影響。
  11. The result suggest that if there are enough distance combined by every site, the radius will be more accurate. the coherence method was mentioned early ( ota kulhanek, 1973 ) but no one used it to confirm redius of a seismic array

    結果證明，只要臺陣各勘址子臺能夠組合出較連續的距離值，則利用相干函數所求得的半徑將更加精確。
  12. The cross - correlation curves method as a traditional method is to find out the distance with the biggest snr to be the radius. the author tried a new coherence function method combined with the cross - correlation curves traditional method to confirm that the radius of the seismic array are 380m and 1500 - 1750m respectively

    作者對比了各測點對之間的噪聲和信號的相干函數並找出了信噪比最大的距離值，結合傳統的相關值曲線理論得出了蘭州臺陣內外圓的半徑分別為380m和1500 - 1750m 。
  13. In this paper, a simplified method of calculating wind - induced response and design loads of super - high - rise buildings was proposed. coherence properties of wind load on typical tall building were analyzed and the results show that cross - wind loads at different height have strong coherence at vertex shedding frequency, and the coherence function ' s value here is near to 1

    首先分析了各測點層合力的相干特性，結果顯示各測點層所受順風向風荷載之間的相干函數基本成單調衰減規律，而橫風向脈動風荷載在漩渦脫落頻率處存在和順風向不同的顯著相關性。
  14. Testing datas are gathered by using data picking box cras. a general dynamic model for analyzing characters of vibration system has also been developed according to the input and output applied on the testing system. identifications for structure modal parameters and frequency - spectrum characters have been carried out by calling the interface software developed unpon matlab software in both the time field and the frequency field. the structure modal parameters and frequency - spectrum characters have been accurately calculated

    利用cras數據採集箱的數據採集功能對系統的信號進行數據採集，通過介面軟體調用matlab軟體平臺，分別針對時間域和頻率域兩種研究方向，解決振動系統模態參數的辯識問題和結構的頻譜特性分析問題，得到系統的相干函數等頻譜特性，獲得模態參數，如模態頻率、阻尼等的精確解。
  15. Partial coherence function

    部分相干函數
  16. Spatial coherence function

    空間相干函數
  17. So a new method is proposed that combines the traditional transfer function and coherence function analysis with the statistics of frequencies to obtain the dominant frequencies, which can reflect how the noise sources influence the bus interior noise level in frequency domain, and which will provide reliable references to make up plans in reducing the bus interior noise

    對此提出了在傳統的傳遞函數和相干函數分析的基礎上結合頻率統計，選出優勢頻率的方法來考察噪聲源對車內噪聲的影響，為制定客車車內噪聲治理方案提供了可靠的依據。
  18. It has the functions of collecting vibration signal power spectruiru cepstrum and transfer function analysis and so on with the pcl _ 1800. at the same time, the system can convert the data into the corresponding graph

    本系統是windows界面下的狀態監測與故障診斷系統，它在數據採集卡pcl1800的支持下，可以完成振動信號的數據採集以及功率譜、倒譜、譜陣和相干函數分析等功能。
  19. According to the data processing results ( the two radiuses ), the author chose nine sites as a elementary array from 18 sites and calculated its array response to find that the main lobe is big and sharp while the side lobe is small, this result suggest that the resolution of this elementary array is very high, so it has the ability to locate earthquakes accurately

    相干函數方法早有人提出（ otakulhanek ， 1973 ） ，但沒有人利用它作為測定臺陣半徑的依據。作者根據勘址數據處理結果（內外圓半徑）對18個測點進行了篩選，得到了初步符合要求的9個測點作為初選臺陣。
  20. But it was only about 0. 3 when the cut off frequency of target signals increased to 0. 4 hz

    相干函數也表明在小於0 . 1赫茲時有較高的值。
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