頻譜位移 的英文怎麼說

中文拼音 [bīnpǔwèiyí]
頻譜位移 英文
spectral displacement
  • 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...
  • 譜 : Ⅰ名詞[書面語]1 （按類別或系統編成的書或冊子等） table; chart; register 2 （指導練習的格式或圖形）...
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 移 : Ⅰ動詞1. （移動） move; remove; shift 2. （改變; 變動） change; alter Ⅱ名詞（姓氏） a surname
  • 頻譜 : frequency spectrum; frequency content; spectrum; power density spectrum; power spectrum; [系統] s...
  1. Study shows that the basic principles of three existed methods for phase difference correction on discrete spectrum are identical, by which the twice fft analysis through time - domain shifting time series or changing window ' s length is performed, and the spectrum by making use of the phase difference of two corresponding peak lines are finally corrected

    在研究時域平移的離散頻譜相位差校正方法和改變窗長離散頻譜相位差校正方法的基礎上，發現這幾種離散頻譜相位差校正法的基本原理是一致的，就是通過時移和加不同的對稱窗進行兩次fft分析，並利用離散頻譜對應峰值譜線的相位差以求得頻率和相位校正量。
  2. The ga ( genetic algorithm ) is applied to solve the optimal parameters of the mtmd appended in cabin in frequency - domain. 4. the dynamic responses of the cabin with different mtmd are compared under different wind speed

    以基於davenport風速譜的位移諧響應根方差為目標函數，應用遺傳演算法，在頻域上獲得了mtmd的最優參數值。
  3. The algorithm, basing on convolution filtering technique and the fringes " gray values max - min distribution, can automatically and accurately carry out space frequency spectra shifting without spectra analysis and spectrogram in the technique of phase method of projected grating for 3 - d object shapes measurement. the new algorithm makes image processing much caster and the technique of object shapes measurement more automated. the phase error caused by filtering and the crossed - optical - axes geometry setup is also discussed

    本文採用投影光棚相位法和數字卷積濾波技術：根據柵線的條紋灰度值分佈具有極大極小分佈的特性，提出卷積濾波形貌光學自動檢測的圖像處理方法，有效地實現了頻譜自動移位，從而進一步提高了圖像處理的速度和形貌測量技術的自動化程度；同時對採用兩光學主軸相交，且非遠心投影系統所產生的誤差進行了分析，並提出了修正方法。
  4. The contrast is higher, the amount of reflect becomes more ; and the sedimet is deeper, the shaking duration becomes longer. so. as the contrast higher and the depth deeper, more waves converge on the basin, more waves interfere with each other, the duration is longer, the amplitude of displacement or accelerate is larger, and the fourier responce spectra contain more components

    所以，基巖與沉積層的剪切波速比越大，沉積層的深度越大，波就越容易聚集在盆地中，中國地震局工程力學研究所碩士論文波與波之間的干涉機會就越多，盆地的振動時間就越長，沉積層的位移和加速度反應就越大，波的頻譜成分就越豐富。
  5. According to the raman selection rule and the pl measurement, it is reasonable to evaluate the quality of galnp / algalnp mqw by analyzing the relative intensity ratio of a1p - lo / to. ( 4 ) a new modified random element isodisplacement ( mrei ) model is set up to calculate the dependence between the long - wavelength optical phonon frequencies and the composition of iii - v - type ab1 - xcx mixed crystals. the second neighbor force constants are still assumed to be a linear variation with the composition, but the two first neighbor force constants can be evaluated to be a negative exponent variation with the composition, using the overlapped repulsive potential of the ion crystal combination

    通過實驗我們找到了在這些結構參數上生產gainp algainpmqw的較理想的結果； （ 3 ）首次用喇曼（ raman ）散射方法研究了常溫下的gainp algainp多量子阱結構，除了指認出喇曼光譜中各光學聲子模外，還結合樣品光致發光譜的測量結果，分析發現喇曼光譜中alp - lo to的相對強度比可以在一定程度上評定晶體gainp algainpmqw的生長質量； （ 4 ）在修正的隨機元素等位移? mrei模型的基礎上建立了一個新模型，計算了ab _ （ 1 - x ） c _ x型?族半導體混晶的長波長光學聲子模頻率的組分變化關系。
  6. The quantitative relation of both the p - wave particle displacement proportion to charge and the root mean square of amplitude proportion to the 3 / 2 root of cavity radius was obtained, then the elongated charge, and the vertical delay stacked source, and the concentrating energy source, and the detonating seismic hammer, and opposite collision source were developed

    本文基於球腔震源的縱波位移方程、激發子波的振幅及頻率與藥量的關系等理論基礎，總結了縱波質點位移與藥量成正比、振幅譜均方根與空穴半徑的3 2次方成正比的定量關系。
  7. By 1 - d fourier transform, we could analyze wave spectrum and get wave speed by computing phrase shift, then calculate the velocity of the wind, so we can avoid the problem of " sub - pixel motion "

    使用傅立葉相位分析法，對示蹤雲進行頻域波譜分析，由諧波的相位變化計算波速，繼而得出風速，能夠避免「亞像素尺度位移」問題，提高導風的精確度。
  8. On the other hand, the calculation on difference earthquake wave show : the spectrum of earthquake wave will affect dynamic property of structure like long period of xiao wan dam

    另外，不同性質的地震動輸入所得的計算結果表明，地震波的頻譜特性對于小灣大壩這樣的長周期結構的動力反應特別是位移反應有明顯的影響。
  9. Firstly the phase is extracted from interferogram by filtering and displacing frequency spectrum. then the wavefront and the line integral density are recovered by using fft or polynomial fitting method. lastly the radial local density distribution is calculated from the fitting curve of line integral density by the abel inversion

    首先對干涉圖進行頻譜濾波，用頻譜移頻法從干涉圖中提取相位，然後用快速傅立葉變換或多項式擬合實現波面重建，計算線積分密度，再利用abel積分變換從線積分密度的擬合曲線中反演徑向體密度分佈。
  10. Consequently, a synthesized method is presented in this thesis, which includes time - domain shifting, window - length changing and window - type changing ( the second time - domain sequence lags behind the first one with l points, performing n - point fft analysis on the first sequence and m - point fft analysis on the second one with different windows, and finally correcting peak lines )

    利用這一原理提出通用的離散頻譜相位差校正方法：時域平移+改變窗長+改變窗函數，即第二段時域序列比第一段滯后l點，採用不同窗函數對這兩段時域分別作n點和m點的fft分析。
  11. Infrared reflectance was used in measuring the characteristics of the sio2 layer on sic. a peak appeared at about 1100cm - 1can be used to monitor the density of the sio2 layer. after annealing in n2, the peak shifted towards high frequency

    運用紅外反射光譜研究sic表面生長的氧化層在退火過程中特徵反射峰的四川大學碩士學位論文漂移情況，實驗發現經過nz退火后，表面5102的1100cm - ，附近的特徵反射峰位向高頻方向移動，並且在1100左右退火時，這種漂移最明顯。
  12. This paper introduce the status and fuction of radio monitor in the radio spectrum management at first, and explain radio monitoring center build every specification requirement put forward to national radio monitoring system, at the sam time, the paper analyses the radio interferece, examineto error, the comprehensive pain of design of monitoring system of handling, combining the actual proposition hi our province

    本文首先對無線電監測在無線電頻譜管理中的地位作用和職能作了介紹，闡述了國家無線電監測中心對全國無線電監測系統建設提出來的各項技術要求，並從理論上就在無線電系統建設中需解決的無線電干擾，測向誤差，電磁兼容等問題作了分析。然後結合我省無線電管理工作的實際提出了搬移式綜合監測系統的設計方案。
  13. To smooth the transition, the fcc allows broadcasters to deliver both analog and digital signals over the tv spectrum ( channels 2 to 69 )

    為了順利完成轉移，通信委員會允許電視業者在電視頻譜（ 2 ~ 69頻道）中同時發射類比與數位訊號。
  14. Deduced the elements of the “ spectrum shifting ” : use the resting fringe illuminate target many times, take pictures of the illuminated target, process the pictures by algorithms, at last, abtain the high resolution image of the target

    理論推導了「頻譜搬移法」的成像原理:多次利用相位不同的靜態條紋對目標的頻譜信息進行搬移，對照射條紋后的目標進行成像，利用演算法對多幅圖像綜合處理，得到目標高解析度圖像。
  15. The pseudo - dynamic test of 1 / 3 - scale model six - story building assembled with hollow shear wall with seams. the internal forces, the deformation and the failure mechansm of the building under earthquake are studied. the rules of frequency, damping and response spectrum are studied. the characters of earthquake response such as structure displacement, interstory drift, action of earthquake, the amplificatory coefficient of acceleration and the rule of strain are discussed. at last, this paper presented the design method of this structure based on the aseismic style and put forward the construction

    進行了帶縫空心剪力墻結構六層樓房的1 3模型的擬動力試驗，研究了結構在水平地震作用下的受力特點、變形特徵、破壞形態等力學性能；得到了結構在不同受力階段的頻率、阻尼、反應譜等動力特性變化規律；討論了結構各樓層的水平位移、層間位移、地震力、加速度放大系數及構件應力分佈規律等結構地震反應特徵；指出了結構的抗震類型、薄弱層及薄弱部位；提出了多層帶縫空心剪力墻結構的第一階段設計方法和相應構造措施。
  16. 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。
  17. ( 2 ) the properties of displacement measurement based on self - mixing interference are mathematically analyzed. first, how the external phase influences upon the output frequency, intensity, power and line - width is discussed. then, the output signal ' s properties modulated by four waves, including sine wave, square wave, triangular wave and saw tooth wave, is discussed

    （ 2 ）通過數值分析討論了自混合干涉位移測量系統的基本特性，包括外腔相位對輸出光頻、輸出強度、輸出功率、譜線寬度的影響，以及正弦波、方波、三角波、鋸齒波調制反射體位移時輸出信號的特點。
  18. On basis of this property a new type of coherence function was proposed and a simplified method of analyzing structure ' s wind - induced response and equivalent load was proposed. wind tunnel experiments with the caarc standard tall building model was executed to verify the proposed method with the dynamic balance technique. the comparisons show the good agreement on the basis of linear mode shape assumption that is used in balance technique

    按照簡化方法計算的基底傾覆彎矩功率譜、基底彎矩響應、頂部加速度和位移響應等參數均能與高頻底座天平試驗的結果較好的符合，等效設計荷載的計算結果也與按照《建築結構荷載規范》的計算結果具有一定的可比性。
  19. Based on frequency - spectrum - transformation, this algorithm first changes acceleration spectrum into displacement spectrum, then calculates its amplitude, angular frequency and initial angle related to every displacement spectrum, finally sums up all the displacement components and forms the time course of the measured vibration

    該方法採用頻譜轉換法，首先將加速度譜轉換成位移譜，再計算出位移譜中每個頻率分量對應的幅值、圓頻率和初相角，最後對各位移分量進行疊加得到振動位移的時間歷程。
  20. A phase detection method based on the bayesian spectrum estimation is proposed for improving the accuracy of traditional phase analysis method in this paper

    摘要針對傳統的相移分析方法誤差大的問題，通過合理的選取信號模型，採用貝葉斯頻譜估計演算法對實驗中輸入輸出信號進行了相位識別。
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