波形特性 的英文怎麼說

中文拼音 [bōxíngtèxìng]
波形特性 英文
waveform characteristic
  • 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...
  • 特 : Ⅰ形容詞（特殊; 超出一般） particular; special; exceptional; unusual Ⅱ副詞1 （特別） especially; v...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 波形 : [物理學] wave form; shape; wave pattern; wave profile
  • 特性 : characteristic（s）; character; performance; features; properties; behaviour; response; character...
  1. For this purpos, from the point of the log geology, aimed at the actuality of the current fractured reservoir log geology interpretation and evaluation, based on synthetical analysis of the current domestic and foreign fruit of fractal dimension investigation of reservoir fracture, using the method and technique of fractal dimension, through the further discussion of the fractal dimension characteristics of m index and n index in the log interpretation archie model in a sample way and through the theoretic reasoning to the fractal dimension dfa and m index of fractured reservoir interval ' s log curve, according to the geophysical signification of the fractal dimension dfa of fractured reservoir interval ' s log curve shape : the more complicated the change of the curve shape is, the larger the its dfa value is, then the more complicated space structure of fracture and pore, then the higher value of m index of space structure of fracture and pore, and so on, the text propounds an improved method, based on box dimension, of covering log curve with scale grid, and by programming computes the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, then further puts this technique into application investigation, and makes analysis of application effects in the reservoirs located in l area of qx oil field from three aspects : 1. the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, which are derived from computing, is used to identify reservoir type by crossplotting m index with the product df _ acrt of fractal dimension of acoustical wave log curve and restivity log curve and by experiential discriminance plate of reservoir type in l area of qx oil field

    因此，對該區裂縫性儲集層的類型識別、孔滲特徵的測井地質解釋以及儲層裂縫的發育和分佈規律進行深入的研究便成為本文研究的出發點。為此，本文從測井地質的角度，針對當前裂縫性儲層測井地質解釋與評價的現狀，在綜合分析當前國內外儲層裂縫的分形分維研究成果的基礎上，利用分形分維方法和技術，通過對archie測井解釋模型中的m指數、 n指數的分形分維特性的深入淺出的論述以及裂縫性儲層段測井曲線分維d _ （ fa ）與m指數的理論推導，根據裂縫性儲層測井曲線形態分維值的地球物理意義? ?曲線變化越復雜，則其分維值d _ （ fa ）越大、裂縫孔隙空間結構越復雜、裂縫孔隙空間結構指數m值越高等特徵，提出了改進的基於盒維數的測井曲線網格覆蓋法，編程計算了裂縫性儲層段常規測井曲線（如聲波和電阻率曲線）上分形分維值及其m指數值，進而從以下三個方面對qx油田l區塊的裂縫油藏進行應用研究，效果十分理想： 1將計算得到的可變的m指數與聲波和電阻率分維之積df _ acrt進行交繪，採用儲層分維值分類技術統計分析這些參數變化的規律，並結合qx油田l區塊儲層類型經驗判別圖版，從而實現qx油田l區塊下白堊統的裂縫性儲層的類型識別。
  2. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。
  3. The relation is given by the target strength and waveform mutational with dividual angle and incident angle. the experiment on the intelligent underwater sail in a water tank is tested, the valuable laws of multistatic target distribution characteristic are obtained

    完成了非入射方向模擬目標智能航行器聲散射特性的水池實驗，給出了目標回波的強度和波形隨聲波入射角和分置角的變化關系。
  4. Trajectory characteristics of hypersonic waverider missile with rocket extended range

    火箭增程乘波外形導彈彈道特性研究
  5. The imposition of a curved phase characteristic reduces the peak amplitude of the waveform.

    曲線形相位特性減小了波形振幅峰值。
  6. In order to detect the bottom thickness, cavity, leak and deformation of steel meshes in secondary lining of concrete in tunnel construction, the authors evaluate the wave character and the detected result in the second lining of the tunnel using surveying radar technology and conclude the wave character in the tunnel lining which has mass defect and tested the accuracy and reliability of this technique

    摘要為檢明隧道混凝土二次襯砌中的底界厚度、空洞、漏水、鋼筋網變形等質量問題，利用探地雷達技術，通過對檢測方法及工程檢測實驗的研究，進行隧道二次襯砌中雷達波形特徵參數及檢測結果評價，總結了隧道襯砌質量問題的雷達波形特徵，驗證檢測方法的精度和可靠性。
  7. Analysis of the characteristic of monocycle waveform in coal mine uwb communication system

    礦井超寬帶通信系統中單脈沖波形特性分析
  8. Abstract : with a view of time - varying characteristic of the v ibration signal measured on reciprocating machinery and a brief introduction to the wavelet analysis and a nonlinear wavelet denoising theory, the paper makes an approach, by taking an triplex pump widely used in heavy machinery as an exa mple, on the waveform feature extraction which reflects the various conditions o f reciprocating machinery with nonlinear wavelet denoising analysis method

    文摘:針對往復機械振動信號的非平穩時變特點，本文在簡述小波分析及非線性小波消噪理論的基礎上，以重型機械使用的三缸泵為例，研究了用非線性小波消噪方法提取往復機械狀態下的波形特性。
  9. After that the dynamics behaviors and wave properties of finite deformation elastic thin rods are paid more attentions to in lagrangian coordinate

    然後，利用lagrange描述法對一維彈性桿中考慮有限變形時的幾何非線性波的波動特性及動力學行為展開討論。
  10. Diagrams of velocity vectors and streamlines display waveform and amplitude properties, showing the effect of fibres on enhancing the flow stability. the computational results are tested

    Piv測量得到流場速度矢量圖及流線圖，擾動波幅與波形特徵說明， re數一定時流動穩定性隨h值增大而提高。
  11. The fluctuation characteristics of liquid slug length in the downward inclined pipe with a large range of gas and liquid velocities were investigated on the basis of fractional theory of air / water slug flow

    摘要利用非線性分析技術中的分形理論在較寬的流速范圍內對下傾管中空氣水段塞流的液塞長度波動特性進行了研究。
  12. In the situation of the rarefaction chasing after the shock wave, both the analysis solve and the important relation as to the characteristics of the wave form are obtained in the use of the characteristic line method before the rarefaction catching ip with the shock wave ; after thai, qualitatively, two kinds of wave forms, reflection shock wave and incidence shock wave, or reflection shock wave and incidence rarefaction, may be obtained as well as the corresponding conditions for their occurrence

    對稀疏波追趕沖擊波的情況，在稀疏波趕上沖擊波以前，利用特徵線方法，得到了此問題的解析解及有關波形特性的重要關系；在稀疏波趕上沖擊波以後，不僅定性地得到二者經過相互作用以後，可能產生的兩種不同波形，即反射的沖擊波和入射的沖擊波或者反射的沖擊波和入射的稀疏波，而且給出了產生不同波形所對應的條件。
  13. We firstly smoothed these finger prints by wavelet transform. then we expressed these finger prints by some statistic parameters such as skewness, kurtosis, number of peaks, asymmetry, and the cross - correlation factor. lastly we put these statistic parameters into the artificial neural network for pattern recognition

    通過對譜圖波形特性的分析，先對譜圖進行了小波平滑，然後在平滑后的譜圖上提取了表示波形特徵的統計指標，最後把統計指標送入人工神經網路進行模式識別。
  14. ( 4 ) after factual characteristics of targets and clutter have been studied, an approach of radar signal detection based on factual has been given and analyzed deeply, the influence caused by different window length, signal to clutter ratio ( scr ) and clutter background has been analyzed, then the monte - carlo simulation method has been used to analyze the detection performances

    （ 4 ）研究了目標和雜波的分形特性，深入研究了基於分形的雷達信號檢測方法，分析了不同滑窗長度、不同信雜比和雜波背景變化情況對回波分形維數的影響，採用蒙特卡羅模擬分析該檢測器的性能。
  15. Many types of dynamic load can be used to analyze the problems of interaction of soils and structures with this program. and it is necessary to use effective stress method to study dynamic deformation problems of soil subgrade. for convenience, traffic load is simplified as half - sinusoidal load, and the soil of subgrade is assumed to be strain - hardening

    將交通荷載簡化為半波正弦荷載，假定地基土體為硬化型土，運用本文編制的動態彈塑性有限元程序，分析了單次動力加載和循環動力加載條件下道路橫截面與軟土地基共同變形特性。
  16. So the conceptions of " characteristic variable " and " characteristic model " are presented here, and with them as a clue, the paper focuses on collecting and summarizing the characteristic variable which can indicate system ' s state and performance, physical meaning of the variables are discussed also. the characteristic variable includes : stability - monitoring variable, characteristic variable based on time - domain performances, output waveform variable, parameter variable and circumstance variable

    為此，本文提出特徵量和特徵模型的概念，並以此為思想主線，重點研究了能夠表徵系統性能的特徵量及其意義，引入了系統穩定性監控的特徵量、與控制指標相關的特徵量、輸出波形特徵量、參數特徵量及環境特徵量。
  17. Based on geological radar penetrating practice for soil and stone dam hidden dangers of reservoirs in northwestern loess areas and from the variations of the disturbance, pore ratios and water contents of the soil bodies in the percolation positions, the authors analyzed the variations of geological waveform characteristics and waveform phase axis continuation, and summed up the graph characteristics of the percolation hidden dangers in different periods

    摘要通過西北黃土地區水庫土石壩滲流隱患探地雷達探測實踐，從滲流部位的土體擾動、空隙比、含水量的變化入手，分析探地雷達波形特徵變化、波形同相軸連續性的變化，總結了滲流隱患不同時期的探地雷達圖像特徵。
  18. The electronic pulse waveform of linear, non - linear and the critically transiting switching modes outputted from the si - gaas pcss ' s was observed and measured. especially, we repeatedly measured the bias field thresholds and lock - on field of the critical transiting mode from the linear to non - linear state

    作者測試了半絕緣gaas光電導開關在線性、非線性以及從線性到非線性過渡的臨界狀態模式下輸出的電脈沖波形，特別是反復測量了開關在臨界狀態下的偏置電場閾值和lock - on電場強度。
  19. The input impedance and pattern of koch fractal monopole and tree - like monopole are analyzed. both experimental and numerical results show that the two kinds of antennas both have the characteristics of reduction in size and the tree - like fractal monopole also has multiband behavior

    文中對koch分形單極子和樹狀分形單極子的輸入阻抗特性和方向圖特性進行了分析，數值結果和測量數據都表明這兩種分形天線具有尺寸縮減性，而且樹狀分形單極子還具有多波段特性。
  20. According to the transform characteristic and soil pressure diversification of rockfill under the process of vibration compaction, the stress wave theory are combined to open out the compaction mechanism of rockfill under the process of vibration compaction

    根據填石料在振動壓實過程中的沉降變形特性及土壓力的變化情況，結合應力波理論揭示填石料在振動壓實中的壓實機理。
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