wavenumber 中文意思是什麼

wavenumber 解釋
波數
  1. Frequency - wavenumber energy spectra in isotropic turbulence

    均勻各向同性湍流的頻率波數能量譜
  2. The preparation of gold electrode of double layers and the spectroscopic and electrochemical studies when it was incubated with bacteria : cv measurement demonstrated that the defect content within the double layer gradually decreased during the incubation, sers showed that the film structure became order during the incubation and the bands of double and triple bonds shifted toward high wavenumber, too

    循環伏安測試表明在雙分子層與細菌培養的過程中，雙分子中層中的的缺陷數量逐漸減少。表面增強拉曼光譜證實在雙分子層與細菌培養的過程中，雙分子中層的膜結構變得更加有序，且其雙鍵與三鍵的共振峰也同時向高波數的方向移動。
  3. On the basis of it, - a isotherms were analyzed at different ph 、 temperature 、 molar fraction of mpda and the optimal condition were obtained the preparation of polydiacetylene monolayers and the studies of its spectroscopic properties : the mpda / pda monolayers were irritated by 254nm uv - lamp for 20 seconds and the sensitive monolayers were produced. the uv - vis spectra showed that the recognition between mannose and e. colik12 is specific. the results of the rrs confirmed that the bands of double < wp = 7 > and triple bonds simultaneously shifted toward high wavenumber and its electrical structure of the backbone changed from acetylene to butatriene

    - a曲線的結果表明：雙炔（ pda ）及其甘露糖衍生物（ mpda ）是混溶的。在此基礎之上，我們又對亞相處于不同溫度、不同ph值時和雙炔（ pda ）及其甘露糖衍生物（ mpda ）二者以不同比例混合時的- a曲線進行了詳細的分析，從而確定了雙炔（ pda ）及其甘露糖衍生物（ mpda ）成膜的最佳條件。
  4. Chapter 4 discusses how to process live data by adopting wavenumber domain ( w _ k ) algorithm and its simplified algorithm, and achieves satisfying results

    第四章採用波數域及其簡化演算法分別對星載旁視sar和機載前斜視sar真實數據進行處理，取得了預期的結果。
  5. Chapter 3 analyzes the principle of wavenumber domain ( w _ k ) algorithm and simplified wavenumber domain algorithm in detail. with the realization of emulation, performance of these two methods is compared

    第三章詳細分析了波數域成像演算法及其簡化演算法的原理，採用上述兩種方法進行了模擬，並對兩者的性能作比較。
  6. Range - doppler algorithm is a one dimensional algorithm. wavenumber domain algorithm and chirp scaling algorithm are two dimensional algorithms. this paper discusses their theory and processing flow

    Range - doppler演算法是一種一維處理演算法，波數域演算法和chirpscaling演算法是二維聯合處理演算法，本文討論了它們的原理及流程。
  7. Euler ' s equation in the wavenumber domain

    頻率域中的歐拉方程
  8. In term of analyzing and summarizing the existing achievement, propose an advanced and practical wavefield extrapolation operator and arithmetic of forward modeling and migration, which obtain numerical simulation and analysis completely and systemically and exploited new field of fractured reservoir seismic wavefield numerical simulation and applicationin in frequency - wavenumber domain

    在總結、分析前人研究成果的基礎上，提出了具有前瞻性和實用性的波場延拓運算元與正演、偏移演算法，較系統全面地進行了數值計算與分析，開辟了頻率?波數域縫洞儲層地震波場數值模擬與應用的新領域。
  9. The paper concentrates on seismic wave - field forward modeling and migration for the fractured reservoir. it researches the wavefield extrapolation operator for lateral variation of velocity, design four theoretical models and seven practical models with fracture and cavity. base on the progenitor, in the frequency - wavenumber domain with the pspi wavefield extrapolation operator and arithmetic of forward modeling and migration that applied lateral variation of velocity which is strong, the paper obtains the result of numerical simulation and the wavefield characteristic by the way of the forward modeling and depth migration of poststack seismic wavefield

    本文圍繞縫洞儲層地震波場正演與偏移問題，研究了適用於橫向變速波場延拓運算元，建立了四個理論的縫洞模型和七個實際的縫洞模型，在總結、分析前人的研究成果的基礎上，利用適合橫向速度劇烈變化的相移加插值的波場延拓運算元，在頻率?波數域對上述的地質模型進行正演、偏移處理，最後得到了縫洞儲層地震波場的一些特徵。
  10. Author, starts from the one - way wave equation of wavefield extrapolation, research the relationship and transform condition of wavefield extrapolation operators, and propose the steady variational reference slowness rytov approximation general screen wavefield extrapolation operator ( vrselrf ) which can adapt severe lateral velocity variations, in frequency - wavenumber domain, and the improved wavefield extrapolation scheme, also give the method to improve the computation efficiency. the achievement establishes the theoretic basis of the whole research

    首先，從波場延拓的單程波方程出發，系統地研究了頻率波數域的波場延拓運算元之間的相互關系和轉換條件並在此基礎上提出了能適應劇烈橫向變速的頻率波數域穩定的變參考慢度rytov近似廣義屏波場延拓運算元（ vrselrf ）和部分波場延拓改進方案及提高運算效率的措施，為整個研究打下理論基礎。
  11. The application of transverse resonance theory is firstly extended further from plane homogeneous medium to the inhomogeneous spatial region by primarily combining the current martcatili method. then the simplex method is used to calculate the source point " s best position, frequency and the correspond wavenumber of the region

    重點結合已有的marcatili法，首次將橫向諧振法從平面均勻分層介質中的應用進一步延伸到模擬地殼波導的三維非均勻空間區域中，再利用單純形法，確定源點在該區域的最佳位置、最佳頻率和對應的傳播常數。
  12. This paper discusses several questions about imaging algorithms of sar. mainly it discusses three imaging algorithms - range - doppler algorithm, wavenumber domain algorithm and chirp scaling algorithm. still it discusses the assistant processing algorithms of imaging algorithms - doppler centroid estimation algorithms and autofocus algorithms

    本文論述了合成孔徑雷達（ sar ）成像演算法方面的一些問題，主要討論了三種成像演算法? ? - range - doppler演算法，波數域演算法及chirpscaling演算法，並討論了成像演算法的輔助處理演算法? ?中心頻率估計演算法及自聚焦演算法。
  13. In the wavefield - spread area, we uses the phase - shift operator as constraint in frequency - wavenumber field, while beyond the wavefield - spread data, we uses zero point at the ends of phase - shift operator as constraint to take discrete smooth interpolation so that the resulted operator satisfies two - order smooth and the length of this operator can be selected shorter in frequency - space field

    通過離散光滑插值法，在頻率波數域中，以傳播區內的相移運算元為約束，在傳播區外的運算元兩端處以零點為約束，進行離散光滑插值，使得所得運算元具有二階光滑可導性，則其對應的頻率空間域中的運算元就可以取得很短。
  14. Author, secondly, starts from the approximate expandness of square root operator, perform mathematical calculations for finite difference operator in frequency - space domain, fourier finite difference operator in mixing domain ( frequency - space and frequency - wavenumber domain ) and general screen operator in mixing domain, compare and discuss their precision of their wavefield, adaptability for lateral velocity variations, computation efficiency and stability. thirdly, author, applies the steady variational reference slowness rytov approximation general screen wavefield extrapolation operator ( vrselrf ) in frequency - wavenumber domain, to the prestack and poststack forward modeling and depth migration

    第二，從平方根運算元的近似展開出發對頻率?空間域的有限差分運算元、混合域（頻率?空間域；頻率?波數域）的fourier有限差分運算元、混合域的廣義屏運算元進行了推導並對其波場描述精度、對橫向變速的適應性、計算效率和穩定性進行了比較與評述。
  15. From 1920s up to now, various techniques and methods for wave field decomposition, propagation and migration / imaging have been well developed, such as the kirchhoff asymptotic method, frequency - wavenumber domain phase - shift and phase - shift - plus - interpolation methods, and the one - way wave equation based phase - screen and generalized screen methods, etc. wave field extrapolation in these methods is implemented based on the expansion of the wave field by sets of basic functions like spatial fourier harmonies, modes, and green ' s functions

    自上個世紀二十年代至今，波場分解、傳播與偏移成像技術經歷了將近一個世紀的發展，形成了多種不同的方法，如kirchhoff波動方程高頻近似解方法，頻率-波數域的相移（ phase - shift ）方法和相移-內插（ pspi ）方法，以及在混合域中基於單向波動方程的相位屏、廣義屏方法等。
  16. Euler ' s equation in wavenumber domain has been derived based on its spatial expression and tested by gravity and magnetic anomalies of sphere model respectively

    摘要基於空間域中的歐拉方程，推導出頻率域中的歐拉方程。
  17. After simulation, it becomes more explicit on physical concept for solution process with the introduction of the wavenumber, and also more concise on solution

    經過模擬計算，傳播常數的引入不僅使問題的求解過程從物理概念上變得非常清晰，而且求解也更加簡明。
  18. Dynamic displacement field caused by seismic rupture in a stratified medium using discrete - wavenumber method

    用離散波數法計算層狀介質中地震破裂產生的動態位移場
分享友人
分享到 Line

分享到臉書