propagation by diffraction 中文意思是什麼
propagation by diffraction
解釋
繞射傳播- propagation : 持續培養
- by : adv 1 在側，在旁，在附近。2 （擱）在一邊，（放）到旁邊，（存）在一旁；收著。3 （由旁邊）經過，過...
- diffraction : 分解
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The model is based on the theory of physical optics ( po ), geometry theory of diffraction ( gtd ) and uniform theory of diffraction ( utd ), and it can compute and analyze the propagation of em wave in microcellular environments by using improved ray tracing method
該模型基於物理光學（ po ） 、幾何繞射理論（ gtd ） 、一致性繞射理論（ utd ） ，利用改進的射線跟蹤法對微蜂窩中電波傳播特性進行了數值分析計算。 -
Based on the generalized huygens - fresnel diffraction integral and in consideration of the effect introduced by astigmatism, the transformation properties of gaussian beams passing an astigmatic lens are studied analytically, the beam quality of astigmatic gaussian beams is analyzed in terms of the beam propagation factor ( m2 - factor ) and power in the bucket ( pib ), and illustrated with numerical examples
基於廣義惠更斯-菲涅爾衍射積分，並考慮了像散的影響，對高斯光束通過像散透鏡后的傳輸特性作了解析研究，以光束傳輸因子和桶中功率為參數分析了像散高斯光束的光束質量，並以數值計算例加以說明。 -
The propagation characteristics of the diffraction field by a circular aperture of bessel - gauss beam
高斯光束圓孔衍射場的傳播特性 -
Based on huygens - fresnel diffraction integral theory, the propagation properties of bessel beam were studied in this paper. by using the analyses of geometrical optics, hollow beam are found and the formula of the starting point 、 the end point and the bottle length can be got
論文中，我們基於惠更斯-菲涅耳衍射積分理論研究了由軸棱錐產生的貝塞爾光束的傳輸特性，並且通過幾何光學解析無衍射光束的聚焦特性。 -
( 3 ) based on the theory of linear diffraction, the linear propagation of obscuration is analyzed through equivalent diffraction distances, fresnel parameter, and obscuration ’ s area percent by the optical propagation software
用中國工程物理研究院研發的光傳輸軟體數值模擬驗證了散射點的衍射規律。三、從散射點線性理論基礎上分析散射點的傳輸規律。 -
( 2 ) based on the theory of diffraction, we push over the fraunhofer and fresnel diffraction of obscuration. moreover, the distribution of complex amplitude is given, and the rule is validated by the optical propagation software researched by caep
二、根據單縫衍射理論推導散射點的夫瑯和費和菲涅耳衍射規律，分別給出了散射點的夫瑯和費和菲涅耳衍射的復振幅分佈情況。 -
The land clutter is useless signals for target detection caused by land terrain. the multipath effect is some kind of interference which is caused by wave reflection on terrain. the diffraction effect is the phenomenon of wave propagation into shadow region
地雜波是由地面散射引起的對目標探測無用的信號;多路徑是由電磁波在地面反射所引起的干涉;衍射則是電波繞射傳播到遮蔽區的現象。 -
The theory of diffraction aberrations caused by aero - medium was introduced, a physical model on laser propagation in ordered, random inhomogeneous aero - medium was discussed and analyzed. the far - field energy distributions in two condition were given
介紹了氣動光學介質引起的衍射像差理論，分析討論了一套同時可以用於激光在有序，隨機兩種非均勻氣動介質中傳輸的理論模型。 -
This dissertation has studied the effects caused by terrain environment on the propagation of rf signal. the effects includes land clutter, multipath and diffraction
論文主要研究地面環境對射頻信號傳播的影響，包括三個方面的內容:地雜波效應、多路徑效應和衍射效應。 -
The topic we have tackled are as the following, ( 1 ) numerical simulation for light propagation and visualization of light - field distribution of fresnal diffraction and fraunhofer diffraction with ( 2 ) computation and display of hologram by method of simulation - anneal ( 3 ) hologram computation of a point source based on method of interference hologram computation
論文中具體完成了以下工作： 1 、對光的傳播特性進行了數值模擬，以可視化方式表現了菲涅耳衍射和夫瑯禾費衍射的光場分佈。 2 、用模擬退火演算法實現了全息圖的計算及顯示。 3 、在基於干涉全息圖的計算方法上，計算了一個點光源的干涉全息圖和相位分佈。
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