far-field pattern 中文意思是什麼

far-field pattern 解釋
遠場圖形
  • far : adj （farther further; farthest furthest ）1 遠隔的；離得遠的，上遠路的，長途的。2 較遠的，遠處的...
  • field : n 菲爾德〈姓氏〉。n 1 原野，曠野；（海、空、冰雪等的）茫茫一片。2 田地，牧場；割草場；〈pl 〉〈集...
  • pattern : n 1 模範，榜樣；典範。2 型，模型；模式；雛型；【冶金】原型。3 花樣；式樣；（服裝裁剪的）紙樣；圖...
  1. Abstract : in this paper ， a ray - optics analysis is performed to investigate the asymmetry of dual beam scanning field produced by a rotating polygon. some basic equations of dual beam scan are derived ， such as ， the position vector for the incident point ， the scalar expression for reflected ray ， scan pattern on observation plane ect. the far - field asymmetry of the scanning field has been discussed

    文摘:應用幾何光學理論研究了多光束轉鏡掃描場的非對稱性，導出多光束掃描入射點位置矢量、反射線標量表達式、觀察面上的掃描軌跡方程，並研究了掃描遠場的非對稱性。
  2. 3. the acoustic wave impedance coefficient is recovered from the incomplete data of the far field pattern

    對于系數反問題進行了研究，利用遠場模式的不完全數據反演聲波阻尼系數。
  3. The vector - based plane - wave spectrum method ( vpws ) is improved, which can directly obtain the far field diffractive pattern depending on the output near field data in the bor fdtd meshes by use of the deduced formulas in this dissertation

    改進了平面波譜傳播演算法（ vpws ） ，推導出的公式可以由borfdtd計算空間內的近場輸出數據直接計算出遠場的電磁場分佈。
  4. While carrying out the scheme, at first, the basic theory of antenna, array antenna and electromagnetic absorption, the performance parameter of antenna and parabolic antenna are deeply researched. in conformity, the characteristic and calculation of aperture field and near - to - far - field transformation for radiation pattern are detailed analyzed. second, the factors such as, the amount of the antenna elements, mutual coupling between each element, ground and the buildings on earth ' s surface, which affect the performance of array antennas ’ resultant field are stressed discussed

    在系統實現過程中，課題首先從天線、陣列天線，以及電磁場計算方法的基本理論著手，分析了天線與拋物面天線的各項性能參數，以及天線的口面場和近-遠區輻射場的特點和計算;進而，更加深入的討論和研究影響天線陣列合成場強的各項因素，包括系統所使用的天線單元個數對陣列合成場的影響、天線單元之間由於互耦造成的影響、傳播過程中地面和/或地面建築物的影響等。
  5. Far field pattern

    遠紅外的
  6. < uk > the far - field pattern in the plane of the junction consists in this case of only a single dominant lobe about 6 - 9 wine at the half - intensity point. < / uk >

    < uk >沿結平面方面的運場圖形就只是半一強度點約為6 - 9的唯一主瓣。 < / uk >
  7. Similarly, the paper also makes an analysis of the effect that the truncation error of finite scanning has upon the far - field pattern and then introduces the consequent method of compensation

    隨後分析了掃描面截斷誤差對遠場方向圖的影響，並給出了相應的補償方法。
  8. Numerical aperture of step - index multimode optical fibers by output far - field radiation pattern measurement

    用輸出遠場輻射圖測量確定步長指數多模光纖的數值孔徑
  9. With the info era and network economy approaching, e - commerce based on the internet technology is marching into the commercial field and has made far - reaching effect on traditional retailing operation, consumption pattern and commercial link like trade, circulation and consumption etc. during the globalized e - commerce upsurge at the end of the 20th century, tiannan department, a large - scale department retailing enterprise in guangzhou, has launched its own website ( http : / / www. tiannan. com ) and made the online deals come true

    隨著信息時代，網路經濟的來臨，以網際網路絡技術為基礎發展而成的電子商務正全面的、全方位的向商業流通領域滲透，對傳統的零售商業購銷調存以及交易、流通、消費等商業活動、商業結構、消費模式等都產生了深刻的影響。在二十世紀末的世界性電子商務熱潮中，廣州市大型百貨零售企業? ?天南百貨創建了自己的網站（ http / / www . tiannan . com ） ，開發了網上購物的各種基本功能，成功實現了網上購物交易業務。
  10. With the modeling versatility in disk geometry and material, the 3 - d hybrid method can simulate accurately the readout of an optical disk with direct investigations on the 3 - d full - wave near - field distribution, the far - field pattern and the readout signal

    基於其在模型設定方面很好的通用性，此方法能夠準確的模擬光盤光學信號讀取過程，並能夠直接給出三維近場全矢量衍射分佈、遠場矢量衍射圖樣及輸出信號。
  11. In the far field, the farther the distance, the similar and less distance dependent of the image and radiation pattern of electric and magnetic field, the similar the image of electromagnetic field to the fourier transform of the source current distribution, the less distance dependent of the radiation pattern

    在越遠之遠場中，電場與磁場之影像及場型越相似，距離越遠差異越小，電磁場之影像越近似於電流源分佈之富氏轉換。
  12. Output far field radiation pattern measurement

    輸出遠場輻射圖測量
  13. Comparision spectrum and spatial distribution of pulse current on a transmission line and it ' s near and far field radiation pattern

    傳輸線線上脈波電流之頻譜與分佈及其各頻率成份之輻射遠近場型之差異。
  14. The far-field pattern in the plane of the junction consists in this case of only a single dominant lobe about 6-9°wine at the half-intensity point.

    沿結平面方面的運場圖形就只是半一強度點約為6-9的唯一主瓣。
  15. Verification of differences of characteristics of electromagnetic field image and radiation pattern in the near and far field are demonstrated

    驗證電磁場影像及場型特性在近場與遠場中之差異。
  16. With the development of information technology which typically includes micro - electronics technology, computer technology and network communications technology, new military revolution is being stimulated. future war will be a fire - new information war, which based on information dominance and charactered with high - transparent war field, whose main campaign pattern is far distance, out of defence area, globally accurate strikes

    以微電子技術、計算機技術、網路通信技術為代表的信息技術的發展促進了新軍事革命的爆發，未來的戰爭將是以信息優勢為基礎，以戰場高度透明化為顯著特徵，以遠距離、防區外、全球化精確打擊為主要作戰模式的全新的信息化戰爭。
  17. The radiation pattern in the near and far field of each frequency component of the spectrum of current pulse on a transmission line

    傳輸線上脈波電流頻譜中各頻率成份在遠近場區中場型之比較。
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