脈沖束 的英文怎麼說

中文拼音 [màichōngshù]
脈沖束 英文
pulsed beam
  • 脈 : 脈名詞1. （動脈和靜脈的統稱） arteries and veins2. （脈搏的簡稱） pulse 3. （像血管的組織; 連貫成系統的東西） vein
  • 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;...
  1. By using the processing method of sliding time window, the problem of the periodicity range ambiguity is solved. meanwhile, the problem of range ambiguity which is produced because the range of target is biger than the maximum range of radar is also solved by using this method. then, the pulse width parameter which is the most important in the parameters of fmicw is analyzed. the stricter restrict is given to ensure the range spectrum has only one beat frequency after signal processing. at last this thesis introduces the different signal processing methods of fmpcw and fmicw

    同時利用該方法解決了fmpcw信號的由於目標距離超過雷達的最大單值測距范圍而引起的距離模糊問題。然後對fmicw波形參數中最為重要的脈沖寬度進行了分析，給出了更為嚴格的約束條件，保證了信號處理后距離譜峰值的唯一性。最後，分別介紹了fmpcw和fmicw信號的不同處理方式，並對兩者不同的時域濾波性能進行了比較，並對二者的差異進行了分析。
  2. Pulsed - light ceilometer

    脈沖光束雲高計
  3. Based on the diopter status of myopia and hypermetropia, the paper presented the principle of excimer laser refractive surgery, the change of impacting cornea curvature on the cornea diopter. in this chapter, we also discussed excimer laser - corneal tissue interactions and photoablation. determine the relationship between the fluence of arf excimer laser and the cornea ablation rate, attain the relationship between the energy density and the ablation depth

    研究了激光與生物組織相互作用、光蝕作用及準分子激光消融角膜的機理；首次定量研究193nm準分子激光高斯光束的切削量與能量密度的關系，計算單個激光脈沖角膜切削量；發現了角膜曲率對切削效果的影響，首次提出了角膜曲率半徑、切削位置與切削深度的關系；首次定量確定了激光光斑參數及其排列方式對術后角膜表面粗糙度的影響，為更精確實現角膜切削和提高切削后角膜表面光潔度、減少手術后角膜渾濁及角膜表面術后不規則提供了理論依據。
  4. First, based on phased array antenna ' s mono - pulse goniometry and separate coordinate technology about phase control, the antenna beam pointing error formula, caused by phase quantization error, is derived from linear array and circular array to planar array and cylindrical array

    首先以單脈沖相控陣天線測角原理為基本理論出發點，利用相位控制的坐標分離技術，基於線陣、圓形陣等簡單形式的相控陣天線，推導了平面陣、圓柱面陣等相控陣天線由相位量化誤差引起的波束指向誤差公式。
  5. As the pulsar rotates, this beam sweeps the sky in the same way that a lighthouse beam sweeps around the horizon.

    當脈沖量旋轉時，輻射束掃過天空，就像燈塔的光束繞地平面掃視那樣。
  6. This work follows professor wang naiyan " s ider of laser energy storage ring. the new method of ultra - short laser pulse train combination is developed from multiangular optics system

    但是當脈沖個數增多時脈沖寬度為ps量級的激光的組束、空間調節將很難實現。
  7. This system uses a ring structure instead of complex multiangular optics structure. stimulate raman scatter is used to combine laser beam and it also improve the quality of laser beam

    採用這個激光能量儲存環技術能提高準分子激光放大超短脈沖激光的效率，獲得高功率，高束質的激光輸出。
  8. Using this system will increase the efficiency when excimer laser amplifies ultra - short laser pulse without using any complex multiangular optics system. it is possibly to be a new way to gain high energy, high power, high quality, high efficiency ultra - short uv laser

    如果成功，將能充分發揮準分子激光的優點，為產生高功率，高束質的短脈沖激光提供一條簡單、高效率的技術路線和途徑。
  9. A pulse from an intense laser or particle beam, however, creates a disturbance in the plasma

    然而，一個從高密度的雷射或粒子束所產生的脈沖，可以對電漿產生擾動。
  10. As the pulsar rotates, this beam sweeps the sky in the same way that a light house beam sweeps around the horizon.

    當脈沖星旋轉時，輻射來掃過天空，就像燈塔的光束繞地平面掃視那樣。
  11. This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions

    首先對加速度計及其測試技術的發展歷史和現狀，液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹，然後確定了以二元調寬脈沖再平衡測試迴路為設計方案，並從控制理論的角度進行了分析，著重研究了系統中各部分的傳遞函數，利用系統開環傳遞函數分析了系統的穩定性，同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題，並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路，驗證了電路的正確性，最後按照測試系統的要求，採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具，利用該圖形化編程語言完成了測試系統軟體部分的設計，實現了測試功能。
  12. Amplification of uv ultrashort pulse laser in e - beam pumped krf amplifier

    激光器進行超短脈沖的單束放大實驗研究
  13. We study the propagation of ultrashort chirped pulse beams in free space. the results show that the chirp influenced on the spatial singularity more than the width of the pulse beam

    但是對于啁啾脈沖光束，啁啾導致的脈沖光譜展寬仍然會導致脈沖光束的空間奇異性，脈沖啁啾比脈沖長度對脈沖空間奇異性出現的影響更大。
  14. Ultrashort pulse amplification, including chirped pulse amplification ( cpa ) and optical parametric chirped pulse amplification ( opcpa ), has been becoming one of the hot researches in the field of ultrashort pulse laser technology because ultrashort and ultrahigh intensity pulse laser has important applications in high field physics, such as x - ray laser, icf, laboratory astrophysics, laser particle accelerator, and so on

    由於超短超強脈沖激光在x射線激光、慣性約束核聚變、實驗天體物理、激光粒子加速器等強場物理研究領域內的重要應用，超短脈沖激光放大技術目前已成為超短脈沖激光技術研究的熱點之一。它包括啁啾脈沖放大（ cpa ）和光參量啁啾脈沖放大（ opcpa ）兩大類。
  15. Pulsed - light cloud - height indicator

    脈沖光束雲高計
  16. Surface modification of h13 steel by arc deposition of al film and high current pulsed electron bombardment

    13鋼電弧沉積鋁膜及強流脈沖電子束后處理的復合改性研究
  17. Simulation calculation for the energy deposition profile and the transmission fraction of intense pulsed electron beam at various incident angles

    不同入射角度下強流脈沖電子束能量沉積剖面和束流傳輸系數模擬計算
  18. Investigations on beam - current - pulse - shortening in a long pulse relativistic klystron amplifier

    長脈沖相對論速調管中束流脈沖縮短的研究
  19. But the life time of krf laser medium is only 2 ns while the pump time of e - beam pump krf laser is over 100 ns. when a 1 ps ultrashort pulse amplified by krf laser amplifier most pump energy is waste. technology of multi pulse amplify can solve this problem

    Krf激光器的工作介質是非儲能介質，上能態有效壽命約為2 - 3ns ，而電子束的泵浦時間一般為上百ns ，放大超短脈沖激光時絕大部分上能態的儲能沒有被利用。
  20. The pulses can be broadening and become negatively chirped while propagating in anomalous dispersive media. in normal dispersive media, the pulses can be broadening, positively or negatively chirped, or even the dispersion - free propagation can be achieved, if the beam and material parameters are suitably chosen

    在負色散介質中傳輸時，脈沖會變寬、帶有負惆啾:而在正色散介質中傳輸時，脈沖會變寬、帶有正惆啾或負叨嗽，當光束和色散參數滿足一定條件時能實現「無衍射無色散」傳輸。
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