波束路徑 的英文怎麼說

中文拼音 [bōshùlùjìng]
波束路徑 英文
beam path
  • 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...
  • 束 : Ⅰ動詞1 （捆; 系） bind; tie 2 （控制; 約束）control; restrain Ⅱ量詞（用於捆在一起的東西） bundle;...
  • 路 : 1 （道路） road; way; path 2 （路程） journey; distance 3 （途徑; 門路） way; means 4 （條理） se...
  • 徑 : Ⅰ名詞1 （狹窄的道路; 小路） footpath; path; track 2 （達到目的的方法） way; means 3 （直徑的簡稱...
  • 波束 : wave beam; beam; wave packet波束空間 [半] wave number space
  • 路徑 : 1. （道路） way; route; trajectory; path; tail; travel2. （門路） method; ways and means
  1. On one hand, is the product of beam waist radius and half divergence angle, wavelength is not involved. so there is possibility to compare the acutal focusing ability among laser beams with different wavelength. on the other hand, is a calculated result by measuring experiment, and it is more brief and persuadable than m 2factor, since the latter one is a ratio with basic mode gauss beam

    論文研究論證了用值評價激光光束質量的實際意義在於兩個方面，一方面它僅僅包含了光束束寬和發散角，不涉及波長的因素，使不同波長激光束的可加工能力具有可比性;另一方面，值是根據對光束傳輸路徑上不同位置處束寬實際測量結果的計算值，比其在與基模高斯光束進行比值計算得到的m2因子更簡潔、更有說服力。
  2. Furthermore, the range of measurement of it was pointed out. all the analysis shows that our crsi 1il can be used to measure the spatial mid and low frequency wavefront distortion. 5. based on our crsi and algorithm, the phase modulation characteristic of an lcslm was measured

    五、利用環路徑向剪切干涉儀共光路、雙光束干涉的特點，全場準確測量了液晶空間光調制器的位相調制特性，並且利用它的位相調制特性實現了臺階位相板畸變波前的補償，由此證明了液晶空間光調制器可用於控制波前畸變。
  3. A cyclic radial shearing interferometer was used to diagnose the wavefront distortion of a laser system and an lcslm ( liquid crysnd spatial ligh modulator ) was used to control it. some results have been summarized as follows : l. according to the theory of scalar quanity diffeaction and the model of the random gaussian phase screen of low frequency wavefront, the effect of the low frequency wavefront with different rms gradient on the focal spot of a laser beam was studied

    本論文在激光光束波前畸變檢測和控制上進行了新的探索，主要就空間相位調制環路徑向剪切干涉儀以及它對波前畸變的檢測和液晶空間光調制器及其對中頻段波前畸變的控制進行了研究，其研究的內容和取得的成果如下：一、根據標量衍射理論，結合低頻波前畸變的高斯隨機位相分佈模型，研究了不同均方根梯度低頻畸變波前對激光光束焦斑聚焦性的影響，並採用描述中頻段波前畸變的功率譜密度概念，模擬計算了它對激光焦斑旁瓣的貢獻。
  4. M - mode is a kind of dynamic display mode. it also uses the brightness to represent the strength of the ultrasonic returns, but the independent variable in the display is time. returns from different scanned depths are revealed along the time axis to show the movement of different layers of the scanned organs

    M型是一種運動顯示方式，它也是以亮度的強弱來表示回聲信號強弱，但將聲束路徑上不同深度的回波圖象沿時間軸慢慢展開，以表示界面的運動軌跡。
  5. The advantages of using leo satellite are as following : on the one hand the satellite orbit is low, so the transmission delay is short, the power loss is small ; on the other hand the development of cell communication, multi - access, frequency multiplex and etc also provide a technique guarantee to the leo satellite - mobile - telecommunication. so the leo system is considered to be a satellite - mobile - communication system with a great future

    低軌道衛星是一種運行於1000公里左右的高空中的人造衛星，利用leo衛星實現個人通信的優點在於：一方面衛星的軌道高度低，使得傳輸延時短、路徑損耗小，多個衛星組成的星座可實現真正的全球覆蓋，頻率復用更有效：另一方面蜂窩通信、多址、點波束、頻率復用等技術的發展也為低軌道衛星移動通信提供了技術保障。
  6. The authors established an initial velocity model based on the first break time of the actual data, then realized the forward calculation with the improved shortest path ray tracing algorithm, and applied the improved constrained damped simultaneous iterative reconstruction technique ( cdsirt ) to solve large - scale and sparse equations for inversing the near - surface velocity field

    根據實際地震數據的初至波時間建立初始速度模型；採用改進的最短路徑射線追蹤演算法進行正演；利用改進的約束帶阻尼聯合迭代重建技術（ cdsirt ）求解大型、稀疏的方程組來反演近地表的速度場。
  7. Even if experimenters bounce the beams to and fro to increase the effective length of an interferometer ' s arms to more than 100 kilometres, the expected difference in length between the two beams ' paths still amounts to less than a hundred - millionth of the diameter of a hydrogen atom

    盡管已經讓激光束反復反射來使激光干涉管臂的有效長度增加到超過了100公里，但在光路路程之內，兩束光波長差仍小於氫原子直徑的一億分之一。
  8. At the end of the thesis, the basic physical characteristics of axially - emitted and radially - emitted electron beam are summed up, and the design methods of sws ( slow wave structure ) for high - efficiency beam - wave interaction according to the motion characteristics of e - beam are brought forward, these helpful discussions for design of microwave source are going to be validated by pic method

    最後，本文在總結電子軸向、徑向和角向運動基本規律的基礎上，從電子運動的角度提出了高效率束波相互作用慢波結構的設計思路，為微波源的設計提供了一些有益的參考。
  9. - 2. in order to accomplish the extraction measuremellt of distorted wavefront on specific plane of a laser beam, a crsi ( cyc1ic radial shearing interferometer ) based on relay imaging technique was built. the experiinental result on this crsi shows it can used to test the spatial mid and low frequency wavefront distortion

    二、為了實現激光光束在確定平面上的波前畸變的準確檢測，採用中繼成像技術建立了一套基於空間相位調制的環路徑向剪切干涉波前傳感硬體系統，實驗證明，它可用於中低頻段波前畸變的檢測。
  10. Due to the different values of incident angle, there are two different propagation formats. one case is that the beam is finally trapped in a guide - like channel and propagates stably along the channel when the launching angle is smaller than a critical value. otherwise, it will propagate along the incident direction all along

    由於入射角度的取值不同，格子孤子具有兩種不同的傳輸方式:當光束入射角小於某臨界角度時，光束可被類似波導形式的路徑俘獲，轉而沿該路徑向前傳輸;當光束入射角大於該臨界角時，孤子則不會被俘獲，而是沿著光束的入射方向直線傳輸。
  11. Given the multicast request, the optimal object of the problem is to minimize total number of conversions required. in wavelength assignment, we should consider the requirements that the number of needed converters along the path from multicast source node to any member cannot be larger than specified value because of the signal distortion introduced by wavelength converters. at last, we present several dynamic programming to get the exact optimal wavelength assignment scheme under session blocking policy and destination blocking policy

    考慮到波長轉換器引入的信號失真和噪聲，引進了失真約束，即要求從組播源結點到每個組播成員的路徑上使用的波長轉換器數目均在指定的范圍之內;對于給定的組播需求，優化目標是在滿足失真約束的基礎上使整個組播樹上使用波長轉換器的數目最少;並使用動態規劃給出了sbp和dbp兩種連接建立策略下精確的最優波長分配演算法。
  12. The gauss - ray tracing have the dynamic and geometric character. it can compose the record by calculating the high frequency wave in transverse anisotropic medium, avoiding getting the accurate ray path. it is a very steady and effective method with little calculation time and a good precision

    高斯射線束正演包括地震波運動學特徵和動力學特徵，能有效的計算橫向上不均勻介質中高頻體波的合成紀錄，避開了精確求取兩點射線路徑，大大減少了計算的時間，同時又具有較高的精度，是一個很穩健有效的方法。
  13. In this thesis, firstly, the existing heuristic algorithms for steiner tree problem are summarized ; secondly, a research and analysis is made on the multicast trees that satisfy qos requirement and a fast routing algorithm for delay - constrained low - cost multicast is presented. through simulation, we find that the proposed algorithm is simple and can get the low - cost tee in polynomial time. at last, the multicast routing and wavelength assignment in wdm optical networks is studied ; a routing and wavelength assignment in wdm all - optical networks is presented

    本論文首先綜述了多播路由問題的理論基礎，接著對滿足qos約束的多播路由問題進行了研究，提出了一種快速的時延受限最小代價多播路由演算法，該演算法簡單、快捷，能在多項式時間內找到滿足時延約束的代價較小的多播樹，具有良好的性能；最後，研究了wdm光傳送網中的多播路由和波長分配問題，並提出了wdm全光網路中的多播路由與波長分配演算法，該演算法將路由和波長分配統一進行，構造了時延受限低代價多播樹，克服了將尋徑和波長分配分步進行的弊端，避免了同類演算法的較高復雜性。
  14. A serious factor, which influences on limiting energy characteristics of the modem large laser facilities for realizing inertial confinement fusion ( icf ), is an appearance of destructive effects in the frequency conversion crystals of large aperture placed in to the beams

    在為實現慣性約束聚變（ icf ）而進行現代大型激光驅動器的設計時，限制能量特性的一個關鍵因素，就是光路中大口徑諧波轉換晶體上所出現的破壞性非線性效應。
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