space antenna 中文意思是什麼

space antenna 解釋
空間天線
  • space : n 1 空間；太空。2 空隙，空地；場地；（火車輪船飛機中的）座位；餘地；篇幅。3 空白；間隔；距離。4 ...
  • antenna : n. （pl. -nae , antennas）1. 【動物；動物學】觸角。2. 【無線電】天線〈英國常用 aerial〉。
  1. Above this 34 - m antenna, called dss - 13, is one of those large dishes of the deep space network in goldstone, california and is primarily used for receiving echoes reflected from asteroids when they are beamed by groundbased radio signals

    圖上這座口徑34米的天線，編號dss - 13 ，隸屬美國加州的深空網路。當天文學家從地面向小行星發射無線電波時，小行星會把部分電波反射回地球，並由dss - 13所接收。
  2. Above ) this 34 - m antenna, called dss - 13, is one of those large dishes of the deep space network in goldstone, california and is primarily used for receiving echoes reflected from asteroids when they are beamed by groundbased radio signals

    （圖上）這座口徑34米的天線，編號dss - 13 ，隸屬美國加州的深空網路。當天文學家從地面向小行星發射無線電波時，小行星會把部分電波反射回地球，並由dss - 13所接收。
  3. Space inflatable structures, which has some prominent advantages in space exploration, such as small launched volume and mass, high dependability of deployment, can be used to build large space antenna, solar sail, and other large space structures

    空間充氣展開結構具有重量輕、折疊體積小等顯著優點，在大型空間結構如大型空間天線、太陽帆板等領域有廣闊的應用前景。
  4. The characters of this antenna lie in three points : using yagi - uda antenna to obtain antenna gain through the radial direction ; making full use of the space of the base station along the z - axis direction to get array gain ; arranging the antenna array properly to achieve pattern diversity in azimuth plane

    其特點集中體現在三個方面:在天線徑向通過八木天線的形式獲得增益;充分利用基站空間在z向組成陣列獲取陣列增益;利用開關八木天線方向圖可重構的特性，通過合理的布局，在方位面內實現角度分集。
  5. In this thesis, the concept of " fractal " and the recursive algorithm of fractal structure are depicted. the wavelength - independent character of archimedean spiral antenna and the space filled property of koch monopole are analyzed by the method of moment

    本文介紹了分形的基本概念和分形結構的迭代演算法，採用矩量法分析了阿基米德螺旋天線的頻率無關特性和koch單極天線的空間填充特性。
  6. The theoretic formulas imply that mimo system can make use of multipath fading in full of scatter enviorment and its channel capcacity is in proportion to the transmt or receive antenna. 2. paper mainly explains the basic principle of bell laboratory layered space - time ( blast ) architecture

    2 .論文重點闡述了實現mimo系統中空間復用技術的貝爾實驗室空時分層（ blast ）結構的基本原理， blast結構作為實現mimo系統巨大容量的一種有效的手段，其核心是基於排序的串列干擾消除（ osic : orderingsic ）檢測演算法。
  7. In addition to the conventional techniques such as low sidelobe antennas and displaced phased center antenna ( dpca ), there has been great interest in space - time adaptive processing ( stap ) because it can suppress clutter effectively and improve the detection performance of airborne phased array radar evidently

    除了採用低副瓣天線、偏置天線相位中心（ dpca ）等傳統雜波抑制技術，能夠有效提高機載相控陣雷達地雜波抑制能力和動目標檢測性能的空時二維自適應處理（ stap ）受到了廣泛關注。
  8. The dissertation also discusses a kind of improving algorithm of dpca : adaptive displaced phase center antenna ( adpca ), indicate the adpca can be used in distributed space - borne sar

    5 .對dpca的改進技術（ adpca ）進行了探討。通過分析，說明了adpca技術在分散式星載sar系統中應用的可行性。
  9. Thus, space - charge field in excitated photoconductor can intensity influence not only the shape of photo - electric current of pcss ' s, but also the terahertz out put of photoconducting antenna. in this paper, the forming and movement of space - charge field are simulated by means of fdtd method

    觸發條件下光電導體內部電場不僅顯著的影響光電導開關產生超快電脈沖的功率、波形，而且對thz偶極天線的輻射功率也有明顯的影響。
  10. The top image, a wide field x - ray view, reveals spectacular loops of hot gas spreading out from the southern part of the antenna into intergalactic space

    上圖是寬視場x射線照片，其中顯現的是壯觀的熱氣體環，從觸角星系的南側向外延伸至星系際空間。
  11. Because cassini had to travel nearly twice as far as galileo, the spacecraft required a much larger and more robust communications system and antenna ( provided by the italian space agency ), greater amounts of fuel for maneuvering, and more electrical power

    由於卡西尼號必須航行的距離是伽利略號的兩倍，因此需要更大更可靠的通訊系統和天線（由義大利太空總署提供） 、更大量的燃料以進行航行操控，以及更豐沛的電力。
  12. This paper proposed a hexahedral deployable space antenna, which is composed of hexahedral modules

    結構的具體設計和幾何關系計算是拋物面天線設計的一個重點和難點。
  13. Focusing lens antenna ’ s critical specifications are the position of the maximal electric field value and space resolution

    聚焦透鏡天線的關鍵指標是焦面上解析度大小和焦斑位置。
  14. In this thesis, our work is focused on analyzing the effects of mutual coupling between elements of the thin dipole antenna array. the effects of mutual coupling on the antennas pattern synthesis and the amplitude - phase consistency of the input impedance of the uniformly - space liner array are presented. a new method that used the mutual coupling to synthesize the pattern is been given

    本文就是以此為出發點，將半波長細線對稱振子線天線陣作為研究對象，以分析天線陣列的互耦影響為核心，討論互耦對幾種方向圖綜合技術的影響，並從兩種不同的角度提出了對陣元互耦的校正方法。
  15. The antenna can provide high isolation and low return loss in a compact space with simple fabrication, no needing complex feed network

    整個兩埠天線結構在滿足回波損耗小和高隔離度的同時，還具有緊湊、不需要復雜饋電網路、製作簡單的特點。
  16. The smart antenna, which is adapted in the wireless mobile communication system, in fact, forms an antenna with a high gain. thus communication in all directions can be proceeded, then base station antenna coverage, system capacity and service quality are improved, also inter - symbol interferes and multi - access interfere are reduced. the space division multiple access ( sdma ) is introduced, and users can be distinct from each other through their special location

    在無線移動通信系統中採用智能天線技術，實際上是通過數字信號處理，使天線陣為每個用戶自適應地進行波束賦形，相當于為每個用戶形成了一個可跟蹤它的高增益天線，從而即可以進行全方位通信，也可以用較小的發射功率覆蓋相同的范圍以及提高系統容量和業務質量、降低用戶間的碼間干擾和多址干擾。
  17. Abstract : by comparing the channel capacities hetwem orthogonal space - time block coding and multi - antenna array system over rayleigh fading channel, some capacity loss for orthogonal space - time block coding is obtained, which is a function of the code rate, the rank of channel matrix and the number of transmitter and receive antennas, although the system of orthogonal space - time block codes is simple and easy to implemented. if is also shown that there is no capacity loss only if both the code rate and the channel matrix rank are all one

    文摘:在研究瑞利衰落條件下正交空時分組編碼通道容量的基礎上，將其與多發送多接收天線系統的通道容量進行了比較.比較結果表明，正交空時分組碼雖編碼簡單，易於實現，但在通道容量方面存在較大的損失，損失的程度與編碼碼率、通道矩陣的秩及收發天線數等因素有關.進一步研究表明只有當編碼碼率和通道矩陣的秩都為1時，才沒有通道容量的損失
  18. Space - time processing for cdma with antenna array is investigated in this paper, which includes space - time channel estimation, beamforming technique, 2d - rake receiver, multiuser detection, space - time multiuser detection and joint estimation

    本文研究了天線陣cdma系統中的空時處理技術，主要包括空時通道估計、波束形成技術、空時2d - rake接收機、多用戶檢測、空時多用戶檢測和聯合估計。
  19. In research and development of space antenna, the natural characteristic analysis and structural design optimization are very important

    在空間天線結構的研製過程中，結構固有特性分析和結構優化設計是非常重要的兩項研究工作。
  20. The paper discusses the amplitude - phase consistency in uniformly - space antenna arrays, and given a new way to make use of the mutual coupling to obtain the pattern that we need

    在最後一章中，基於陣元互耦對方向圖的影響，從兩個不同角度，提出了對陣元互耦的補償方法。
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