收發天線 的英文怎麼說

中文拼音 [shōufātiānxiàn]
收發天線 英文
dual-mode antenna
  • 收 : Ⅰ動詞1 （把攤開的或分散的事物聚集、合攏） put away; take in 2 （收取） collect 3 （收割） harvest...
  • 發 : 名詞（頭發） hair
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 收發 : 1 （收進和發出公文） receive and dispatch2 （擔任收發工作的人） dispatcher3 [電學] transmit recei...
  1. Ofta has issued a notice earlier to the satellite master antenna television ( smatv ) licensees, class licensees of in - building telecommunications systems, operatorsowners of in - building coaxial cable distribution systems ( ibccds ) ( including communal aerial broadcast distribution ( cabd ) systems, closed circuit television ( cctv ) systems, cable television ( ctv ) systems ) to alert the residents that they might need to adjust their vcrs or other equipments to avoid using channel 35 and 37 as radio - frequency ( rf ) output channel for connection to the television sets

    電訊管理局已就此事向本港衛星電視共用天線系統牌照持牌商、樓宇內置電訊系統類別牌照持牌商，以及大廈內同軸電纜系統營辦商擁有人（包括共用天線分佈系統、閉路電視系統、有線電視系統）發出指引，呼籲有關單位提醒其用戶如有需要可調整錄影機或其他器材，避免使用頻道35及37作為接駁電視機的訊號接收頻道。
  2. Sufficient or not of the battery on the device should be carefully examined before every flying, so do the every pole, helm and gemel, whether or not is the receiving antenna drew out of the body and in straight, examine the ground effective distance for remote control without the drawing out the antenna, ensure it nomal in rang of 30 - 50 meters

    1 .仔細檢查測試設備每次飛行前都應該仔細檢查設備電量是否充足，檢查飛機各個拉桿舵角鉸鏈是否正常，接收機天線是否拉出機身並拉直，在不拉出發射機天線的情況下測試地面有效遙控距離，確定30 - 50米內不發生跳舵情況。
  3. 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。
  4. 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。
  5. Inhomogeneity of the breast tissue was taken into account in the breast model

    收發分離的天線陣方案降低了超寬帶成像對天線設計的苛刻要求。
  6. The parameters that influence the single photon acquisition probability are the transmitter ' s tracking - pointing error, the far - field divergence angle, the link distance between transmitter and receiver and the receiver ' s antenna aperture

    得到影響單光子捕獲概率的主要參量是發射機的跟瞄誤差、光束遠場發散角、發射機和接收機的鏈路距離和接收機天線孔徑。
  7. Then we introduce the character of the atmosphere channel, which we emphasized on the atmosphere scatter, absorption and scintillation ' s effect on the laser beam. in chapter, we explain why we used cassegrain telescope to collect the optical signal at first, then the lightsource, detector, front amplifier used in optical communication has been compared to that of fiber communication, the noise including shot noise, thermal noise and background light noise has been explained here for analysis the snr and ber in the next section

    在第三章介紹無線光接入系統的光收發單元，採用多孔徑卡塞格倫式的收發天線對消除減小大氣湍流影響有較大作用，針對大氣通道的特點無線光系統收發單元在光源、光探測器、前置放大電路上存在許多有別于光纖通信的技術，同時還闡述了光接收機包括背景噪聲的噪聲機制和接收靈敏度、誤碼率等指標，最後給出了一個整個傳送鏈路的功率預算。
  8. The purpose of this paper is to improve the received signal by study of the polarization character of target in snow clutter and finding the optimum polarization states of antennas

    運用拉格朗日乘子法求出了收發天線的最佳極化方式以增強信號抑制雜波干擾。
  9. When the aerials are down, and your spirit is covered with snows of cynicism and the ice of pessimism, them you are grown old, even at 20, but as long as your aerials are up, to catch waves of optimism, there is hope you may die young at 80

    如果你收起天線，使自己的心靈蒙上一層玩世不恭的霜雪和悲觀厭世的冰凌，即使你年方20 ，你已垂垂老矣；但只要你豎起天線去收集樂觀進取的電波，那就有希望在你80高齡辭世之時仍然青春煥發。
  10. When the aerials are down, and your spirit is covered with snows of cynicism and the ice of pessimism, then you are grown old, even at 20, but as long as your a erials are up, to catch waves of optimism, there is hope you may die young at 80

    如果你收起天線，使自己的心靈蒙上一層玩世不恭的霜雪和悲觀厭世的冰凌，既使你年方20 ，你已垂垂老矣；但只要你豎起天線去收集樂觀進取的電波，那就有希望在你80高齡辭世之時仍然青春煥發。
  11. Phased array transmitter - receiver antenna

    相控陣列收發天線
  12. Bd satellite send - receiving antenna

    北斗衛星收發天線
  13. Gt gain antennas, 0. 6 m for the collection plate dish antennas. fired surface antenna gain of 35 dbm

    Gt ：發射天線增益，收發天線配置為0 . 6米板狀拋物面天線，發射天線增益為35 dbm面
  14. Finally, a tem antenna was simulated. the coupling of two antennas and the tail of the reflected signal of the antenna are reduced. furthermore, the antenna was tested with the gpr

    最後對tem加載喇叭天線進行了模擬，減小收發天線之間的耦合及信號拖尾，並在探地雷達上進行了實測。
  15. We extend the synchronization algorithms for ofdm systems to mimo - ofdm systems, and introduce a synchronization algorithm for mimo - ofdm systems based on cyclostationarity

    將單收發天線下ofdm系統的同步演算法推廣到多輸入多輸出（ mimo ）情況。提出一種基於循環平穩性的mimo - ofdm通信系統同步演算法。
  16. 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
  17. The circular monopole ultra - wideband antenna has not only the extremely wide band in frequency domain, but also stable phase center, which makes the antenna radiate and receive the short pulse signals without any distortion, and suitable for various ultra - wideband communication systems or the single antenna of other multi - frequency operating communication systems

    這種天線不僅具有極寬的阻抗帶寬，還擁有穩定的相位中心。這使得圓盤單極超寬帶天線可以不失真地收發時域短脈沖信號。所以該天線不僅適用於超寬帶通信中，還能夠作為復雜多頻工作系統的單一收發天線。
  18. The simulation results shows that the performance comparison among ofdm system with two transmitter antennas and single receiver antenna, ofdm system with single transmitter antenna and two receiver antennas and ofdm system with two transmitter and receiver antennas is given, the result shows that the performance of ofdm with independent multi - antenna pair is better than that with single pair

    O ）提出了一種適用於多個獨立發射天線ofdm系統的導頻符號輔助的通道估計方法，給出了兩個天線發射單天線接收、單天線發射兩個天線接收和兩個天線發射兩個天線接收三種情況下ofdm系統的性能比較。
  19. Tofind a beam - type shelves and determine its position ， any radar station has to basically consist of a transmitter ， a receiver ， an antenna ， an bed set ， a display and a timer

    為了要發現目標和確定其位置，任何雷達站基本上都必須包括發射機、接收機、天線、天線轉換開關、顯示器和定時裝置。
  20. The quality of images focused by the bp algorithm is much better than rd algorithm. the simulation results demonstrate the correctness of the two algorithms. rd algorithm needs doppler parameters estimation

    模擬分析表明:由於受收、發天線方位圖調制，估計多普勒質心精度較差，而能較好估計多普勒斜率。
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