duct propagation 中文意思是什麼

duct propagation 解釋
波導傳播
  • duct : n. 1. 管，導管，輸送管；槽，溝，渠道。2. 【無線電】波道；【電學】（電線，電纜等的）管道。
  • propagation : 持續培養
  1. Flame propagation through cornstarch dust clouds in an open vertical duct

    玉米粉火焰在開口垂直管道中的傳播
  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. So the researches on the characteristics of evaporation duct environment, propagation and its applications have great theoretical significance and are of great value to military

    使開展蒸發波導環境特性傳播特性及其應用的研究具有重大理論意義和軍事價值。
  4. In order to utilize the atmospheric duct phenomena, and to make the electronic reconnaissance facilities more effective and the status of battlefield more advantageous, on the basis of classification of the atmospheric duct, first the model for evaluating the effective detective zone of electronic reconnaissance facility is established, then the numerical value simulation method of electromagnetic wave propagation under the condition of surface duct calculated with parabolic equation and fourier arithmetic is presented, and finally the influences of atmospheric duct on electronic reconnaissance facility is analyzed

    為充分利用大氣波導條件，發揮電子偵察設備效能，使戰場態勢向有利於己方方向轉化，在介紹大氣波導分類的基礎上，建立評估電子偵察設備的有效探測區的模型，給出用拋物線方程及其分佈傅里葉演算法計算電磁波在表面波導條件下傳播的數值模擬方法，並分析了大氣波導對電子偵察設備的影響情況。
  5. It is concluded from the investigations that evaporation duct propagations and other tropospheric duct propagations become very complicate multi - discipline problems at present time including em theory, atmospheric science and applied science etc., and one of the tough and hot issues in the field of tropospheric propagation

    經過多年的研究，目前蒸發波導傳播等電波傳播問題成為非常復雜的多學科問題，涉及到電磁波理論、大氣科學和應用科學等，成為對流層傳播研究中的一個熱點和難點問題。
  6. In terms of deriving the maximum trapped - wavelength and the critical emitting angle of elevation for electromagnetic wave which can forms duct propagation and introducing the four kinds necessary condition for electromagnetic wave to form duct propagation, under these conditions we now have the radio wave bent back towards the earth

    結果與實際觀測到的波導傳播時的回波結構相同，說明，根據不同的大氣層結，利用電磁波的波導傳播的射線追蹤方法可以基本上確定電磁波的傳播軌跡。
  7. According to state - of - the - art of evaporation duct propagation research, and to meet the demands on the prediction techniques of evaporation duct environment and the assessment of radar performance under evaporation duct environment, this dissertation gives a thorough research in depth on the subject described above. the researches include the prediction theory of evaporation duct and its applications, the theory of ray tracing based on which the prediction of radio wave rays are conducted and its application to the predicting of radar range performance under a given evaporation duct, and the characteristics of tropospheric ducts over china

    根據上述情況，結合我國盡快得到蒸發波導環境預測技術及在其中運作無線電系統的性能預測技術等需求，本文針對蒸發波導傳播及其相關應用這一熱點難點問題較深入地研究了蒸發波導環境預測技術的理論及其應用、蒸發波導環境中雷達探測性能評估所要求的基本理論之一? ?射線描跡技術及其在代表性蒸發波導環境中雷達探測性能評估技術方面的應用和我國應用所需的我國大氣波導環境特性等幾個方面。
  8. To evaluate accurately the ability of radar in evaporation duct environments, a method is proposed which is combined the electromagnetic waves propagation numerical equation with the theories of radar receiver

    該文主要針對如何準確評估蒸發波導環境下雷達的探測能力問題，利用電磁波傳播的數值方程並結合雷達接收機理論，構建了雷達探測定量評估的模型和方法。
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