propagation distance 中文意思是什麼

propagation distance 解釋
傳播距離
  • propagation : 持續培養
  • distance : n 1 距離，路程。2 遠隔，遠離；遠處，遠方。3 （時間的）間隔，長遠，長久。4 懸殊。5 隔閡，疏遠。6 ...
  1. The optical near - field distribution and propagation properties of solid immersion lens system are analyzed in detail when illuminated by linearly polarized focusing gauss beam. the change of the optical intensity and beam dimension at the bottom of solid immersion lens with different refractive index and different distance are discussed. the simulated results reveal that the higher the refractive index is, the stronger the optical intensity and the smaller the beam dimension at the bottom of the solid immersion lens will be

    編制了對固體浸沒透鏡近場超高密度光存儲系統進行模擬的二維時域有限差分程序，實現了對固體浸沒透鏡光存儲系統的數值模擬；著重研究了線偏振的高斯光束通過固體浸沒透鏡的光傳輸和近場光場分佈特性；分析了固體浸沒透鏡底面出射光強、光斑直徑隨固體浸沒透鏡折射率的變化、光透過固體浸沒透鏡后的強度、光斑直徑隨離開固體浸沒透鏡底面距離的變化。
  2. The result can be long distance reception of radio waves that would normally have been far beyond the radio horizon. the equations for ray tracing were given, simulating and tracing electro - magnetic wave duct propagation using spherical layered atmosphere mode, this method is very useful for analysis of radar echo distribution and confirm relation of stratification of atmosphere and ray duct propagation in the process of studying radar second product, introduce a new 3 - d interpolation method. outcome of this method can suit all kinds of density product

    在雷達二次產品處理演算法中，討論了一種新的三維插值，比以往在顯示每一個雷達二次產品時，都作一次插值相比，這種方法既節省了總的機時，也提高了每個產品的顯示速度，在討論這種方法后，用幾個產品的實例，說明了這種方法是可行的，並且還討論了等值線的生成原理，在「雷達二次產品處理平臺」下，開發了visualc + +實現程序。
  3. The propagation of ultrashort laser pulse in air is analyzed with mechanics analogy by considering kerr effects and free electron defocusing. the equation describing the evolution of the laser spot is derived. it is shown that long distance focusing requires large initial beam and the propagation distance is very sensitive to the initial divergence angle of the laser beam

    考慮多光子電離效應和光學kerr效應，首次利用力學類比的方法研究了超短脈沖激光在電離氣體中的傳輸，詳細分析了傳輸距離與激光初始光斑、初始發散角以及激光功率的關系，提出了實現長距離傳輸的條件。
  4. The envelope equation of laser propagating in the plasma channel, and the general expression related the laser spot size with the propagation distance and the width of the plasma channel etc., are derived based on the hamilton - jacobi equation and the refractive index equation

    在此基礎上得到了激光在等離子體隧道中傳輸的包絡方程以及光斑半徑與傳輸距離、隧道寬度等初始參量的關系。
  5. Distance in the direction of propagation of a periodic wave between two successive points at which the phase is the same ( at the same time )

    在周期波傳播方向上在同一時間連續兩個相位相同的點之間的距離。
  6. Numerical examples show that, pulse deformation and broadening, spectrum redshifting, narrowing and distortion take place with increasing diffraction angle in the near field, and the pulse form changes with propagation distance in the near field, but is preserved in the far field

    數值計算例說明在近場隨衍射角的增大會出現脈沖變形、加寬、譜紅移、變形、變窄等特性，脈沖形狀在近場隨傳輸距離變化而變化，但在遠場保持不變。
  7. The paper demonstrates the whole plan of the propagation model application software. with the delphi software, an application software including the function of the realtime calculating path loss value is compiled completely. the paper analyses the planning theory of the td - scdma network. its main aspects include the backbone of the network, the link budget report, the budget of the effective distance, the analyse of the link interference and the analyse of the system capacity

    論證了td - scdma傳播模型應用軟體整體方案，利用delphi軟體編寫了具有校正功能和實時計算傳播衰耗值功能（與gps系統配合）的應用軟體。論文從理論的角度分析了td - scdma網路的規劃理論，主要從網路拓撲結構、上下行鏈路功率平衡預算報告、有效通信距離的估算、上下形鏈路干擾的分析和系統最大容量分析五個方面進行了論述。
  8. Then, after computing xpd induced by rain, its forecast model at different propagation distance is found. this paper also discusses the relation of reflectivity of rain with rainfall rate, taking different polarization wave into account, and that of fog with visibility

    在研究了雨、霧介電特性的基礎上，計算了雨的去極化解析度，得到了不同頻率、不同傳播距離的去極化解析度預報模型；計算了不同極化狀態的波的反射率隨降雨率的變化規律。
  9. The appearance position of hot - image satisfied the rule of z2 = z1 - lv, z2 is mean the image distance, z1 is mean the object distance, and lv is mean the distance between the nonlinear medium. the theory is also validated by the optical propagation software. if n = 1, then the nonlinear medium is only one, lv = 0, and it will satisfy the rule z2 = z1

    四、從非線性近軸波動方程基礎上用散射矩陣理論推導了級聯介質的熱像規律，得出級聯介質的熱像位置滿足z2 = z1 - lv ，其中z2為像距， z1為物距， lv為級聯介質間的距離，並用光傳輸軟體得到了驗證;發現級聯的非線性介質可以看成單一的非線性介質相連，散射點對級聯介質的每一段非線性介質成像;當只有一段非線性介質時，可以認為lv為零，滿足z2 = z1 。
  10. The conditions for the long distance propagation are discussed in detail. the results are useful in determining the appropriate size of the channel to be preformed and can guide the future research in ultrashort intense laser propagation

    首次利用自恰電子空腔效應分析了超短超強激光在低密度等離子體中的長距離傳輸和自聚焦效應，詳細分析了長距離傳輸的條件。
  11. Abstract : based on two order approximation of the variation of refraction index produced by self - action while optical pulses are traveling in kerr - medium, the propagation equation has been solved. furthermore, the strict analytical expressions of the amplitude, width and chirp parameter of chirped gaussian pulse, relative to the propagation distance, are deduced. the solitary wave traveling conditions of fundamental mode gaussian pulse have been discussed

    文摘:將光脈沖在克爾介質中自作用產生的折射率變化作二階近似，求解所得到的傳播方程，得到啁啾高斯脈沖幅度，脈沖寬度和周啾參數隨傳播距離變化的嚴格解析解，討論了基模高斯脈沖孤波傳播的條件。
  12. During these processes, diffraction, self - phase modulation, cross - phase modulation and physical distance between the beam centers all have important effects on the beams and the pulse beams propagation

    在這些過程中，衍射、自相位調制、交叉相位調制、光束之間的間距等都對光束和脈沖光束在非線性介質中的傳輸產生重要的影響。
  13. 5 the effect of complex media protruding topography on seismic wave propagation the protruding topography has amplification effect on ground motion while the hillside has constraint effect. the amplification factor of the valley bewteen two moutains is related to the distance of the two moutains

    5 、復雜介質凸起地形對地展波傳播的影響山體對地面運動有放大作用，在山腳則有抑制作用，山包之間峽谷的土層反應放大倍數受山包之間距離的影響較大。
  14. The fresnel and franhufer diffraction patterns, of regular shapes screen such as slits, rectangular apertures, circle apertures, discs, triangle apertures, ronchi gratings, and some irregular shapes screen, are observed in the different propagation distance. this clearly gives the relation and difference of the two diffraction patterns

    具體分析了規則形狀如單縫、矩孔、圓孔、圓盤、三角孔、黑白光柵及一些不規則形狀等孔徑的菲涅耳衍射和夫瑯禾費衍射圖樣強度分佈，為深入理解菲涅耳衍射和夫瑯禾費衍射及其內在聯系與區別提供了理論依據。
  15. The main achievement of the paper is that the nnlse is simplified to a linear equation. it is found that we can controll a weak beam ' s phase to experience a very large phase shift within a rather short propagation distance by modulating the input power of a stronger soliton beam

    本論文的主要貢獻是：把光束的傳輸方程nnlse簡化成一線性形式的近似方程，發現可以通過調節強孤子光束的功率來控制另一弱光的相位並能使之在極短的傳輸距離內產生大的相移。
  16. The conditions for long distance propagation and self - guiding are given. 3. an optical amplification system for 10 ps krf laser with polarization multiplexing is developed and the energy of 140 ml is extracted

    發展了一種適用於超短脈沖激光的光學偏振放大技術，並應用於10pskrf激光放大系統中，可在有限的激光輸出口徑內有效地提取激光的輸出能量。
  17. High frequency surface - wave radar ( hfswr ) utilizes the surface - wave mode of vertical polarization electromagnetic wave propagation over sea water to detect targets of ships and aircrafts at distance beyond the line of sight

    高頻地波雷達（ hfswr ）依靠高頻垂直極化電磁波沿海洋表面繞射傳播的機理，實現對海面艦船目標和低空飛行目標的超視距探測。
  18. From the fresnel diffraction equation, we calculated the intensity distribution of the fhb in free space, and found that there is an interested propagation property of the fhb before the focal plane. that is, with the increase of the propagation distance z, the dark spot size ( dss ) of the fhb is first increased, and then decreased, the dss has the maximum value at the position of z = - f / 2

    發現在焦平面之前有一個非常有趣的傳播性質，即隨著傳播距離z的增加，這一聚焦中空光束的暗斑尺寸（ dss ）先從另變大然後再變小，最大的暗斑尺寸的位置在z = f / 2處。
  19. The results also indicate that, in a piece of gain medium, the cutoff frequency, " the most quickly growing frequency " and the integral exponential gain are variables of the beam intensity, medium gain coefficient and propagation distance

    在考慮了介質的增益后，截止空間頻率、最快增長頻率以及最大增長因子不再像原始b - t理論中那樣保持不變，它成了和光強、介質增益系數及傳播距離有關的一個量。
  20. As an example, we studied the co - propagation of two soliton beams with one ' s amplitude is much stronger than another. it is then found that the weaker ( probe beam ) can experience a very large phase shift within a rather short propagation distance by modulating the input power of the stronger ( pump beam ). chapter 3, nnlse is simulated for two beams propagation

    以振幅一強一弱共同傳輸的孤子光束為例進行了具體研究，相位分析顯示，與局域孤子相比，孤子光束在相當短的傳輸距離之內能產生大的相移，可以通過對強光（泵浦光）能量的調控來實現對弱光（信號光）的相位調制。
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