指向天線 的英文怎麼說

中文拼音 [zhǐxiàngtiānxiàn]
指向天線 英文
directional antenna
  • 指 : 指構詞成分。
  • 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...
  • 指向 : directing; sensing; sense of orientation
  1. That the antenna points at the aerocraft very precisely can utilize the gain of antenna, minishing the power of transmitter, and propagating data very gualitily effectly

    在無線測控系統中，天線精確指向飛行目標，可最佳利用天線增益，減小發射功率，高質量的進行控制和數據傳輸。
  2. Russians likewise reinforced air units at the front. on 13 sep, ebashi gave go - ahead. 225 planes airworthy ; fighters and some light bombers deployed to forward bases. weather improved on 14 sep

    俄國人同樣向前線增援航空單位.在9月13日，江橋到達前線. （鳥注:此譯不確，請高手指正） .可用飛機總數為225架;戰斗機和輕轟炸機布署在前進機場.自9月14日起，天氣轉好
  3. In order to make the airborne radar instruction control antenna pointing correctly overcome the influence caused by maneuvering of carrier aircraft, and airspace stabilization algorithm is adopted in the airborne radar control circuit

    摘要為使機載雷達指令克服載機機動而正確控制天線指向，在機載雷達控制迴路中加入了空域穩定計算。
  4. 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。
  5. Applying an active vibration control method for the reduction of the lateral vibration of directional antenna is investigated

    摘要本文提出以電流回授主動振動控制方式，抑制指向性天線之側向振動。
  6. A radio receiver and directional antenna used as a system to determine the angular direction of incoming radio signals

    無線方向探測器一種無線電接收和指向天線系統，用來確定收到的無線電信號的角方向
  7. First, based on phased array antenna ' s mono - pulse goniometry and separate coordinate technology about phase control, the antenna beam pointing error formula, caused by phase quantization error, is derived from linear array and circular array to planar array and cylindrical array

    首先以單脈沖相控陣天線測角原理為基本理論出發點，利用相位控制的坐標分離技術，基於線陣、圓形陣等簡單形式的相控陣天線，推導了平面陣、圓柱面陣等相控陣天線由相位量化誤差引起的波束指向誤差公式。
  8. Before the polarization angle adjustment, the antenna pointing may need to be adjusted in advance

    極化角調整前可能需要調整天線的對星指向。
  9. To increase the bearing accuracy of amplitude - comparison, the multi - channel system was chosen, the angle of reaching of moving antenna pattern serial was estimated from the frequency domain using the phase - delay estimating method, and at the same time, the selection of antenna, quantization of signal and touch switches were optimized in concrete engineering practice, and so the requirement of the index was satisfied

    為提高比幅測向的精度，選用多通道體制，採取相位延時估計法從頻域來估算移動天線方向圖系列的達到角，同時在具體的工程實現上對天線選取、信號的量化、去摸開關等進行優化，從而滿足指標要求。
  10. The antenna gain, directivity and reflection coefficient are calculated via finite element method in hfss. spline interpolation and polynomial curve fitting are applied to construct diagrams illustrating the capsulation characteristics. some general conclusions of interest are obtained

    探討了各個封裝參數對輸入端反射系數、方向性系數、效率和增益等性能指標的影響，得到一些規律性結論，為射頻振子天線的封裝應用提供了參考性的建議，並指出了進一步研究的方向。
  11. On the base of above it, this paper discuss the synthesis of optimum distributed arrays by nonuniform spacing in the sense of dolph - chebyshev. having derived the equations of optimum element distribution, we analyze the exponentially spaced array, which are optimum when the elements are isotropic and equally weighted, and the array by general raised cosine function. the formulate for estimating the sidelobe envelope, beamwidth of the array pattern and clean region width are obtained

    推導了最佳陣元分佈方程，分別對陣元無方向性和等加權時的最佳分散式陣列? ?指數間隔陣列和採用廣義升餘弦加權的最佳分散式陣列進行了分析，推導了天線方向圖旁瓣包絡、波束寬度，干凈掃描區寬度的估計公式，給出了近軸旁瓣電平與陣列參數的關系。
  12. Tpvm is a kind of random phase feeding method, which imports noise an d decreases the accuracy greatly. the effects of scpfm and sccpfm are better, especially the latter

    二可能值法是一種隨機饋相法，引入了噪聲，反而使相控陣天線的波束指向精度大為降低。
  13. In airborne synthetic aperture radar ( sar ), antenna stabilization platform is used to isolate antenna pointing, which is stabilized through controlling the platform axis ' rotation, from the vehicle ' s varying attitude and dynamical vibration

    摘要機載合成孔徑雷達中，天線穩定平臺用於隔離載機的姿態變化和機械振動對天線指向的影響，並通過伺服系統控制平臺支承軸的轉動穩定波束指向。
  14. The affect of error of antenna pointing in formation satellite insar system to direction picture

    系統中天線指向誤差對天線方向圖的影響
  15. Beam riding systems use a target tracker whose purpose is to maintain the antenna boresight pointing at the centre of the reflecting area of the target.

    波束制導系統使用一個目標跟蹤裝置，它的目的是保持天線視軸指向目標反射的中心。
  16. Because the adjustment of antenna beam direction is in a very small range, so the effection on antenna sidelobe and beamwidth can be omitted, that is to say, it will not make any effection on other performances of the radar system

    由於對天線波束指向的調整在很小的范圍內，故對天線的副瓣及波瓣寬度指標的影響可忽略，從而不會影響到雷達系統的基他性能。
  17. The key for phased array antennas with good functions is the use of controllable phase shifters. however, phase quantization errors affect the accuracy of phased array antenna beam pointing badly, which is mainly researched here

    其中可控數字移相器的使用，是相控陣天線優越性能實現的關鍵，但由此引入的相位量化誤差，嚴重影響了相控陣天線的波束指向精度。
  18. Method for improving the beam - steering accuracy of phased array antenna

    提高相控陣天線波束指向精度的方法
  19. The antenna pointing control is open loop control without feedback. the antenna pointing errors due to antenna tracking motion and satellite attitude adjusting ( trusting ) were analyzed, as well as the influence of damping, tacking velocity and trusting time

    文章分析了天線作跟蹤運動和星體作姿態調整時，對星體姿態控制精度和天線的指向精度影響，同時分析了阻尼、跟蹤速度、噴氣脈沖寬度等因素變化對動力耦合程度的影響。
  20. A multiloop antenna pointing controller has been designed while three feedforward schemes are used in this control design. the simulation results show that the antenna pointing control system can improve the precision of the attitude angle and the attitude angle rate, and the antenna can slew to the neighborhood of tdrs fast, search and then track tdrs

    在設計好的天線跟蹤指向控制系統基礎上，採用前饋+反饋的復合控制策略設計了復合控制器，模擬結果表明設計的天線指向控制系統能夠較好的提高星體的姿態穩定度和控制精度，天線能夠快速回掃至中繼衛星附近並進行跟蹤，天線指向精度滿足設計要求，表明了所設計的天線指向控制系統的合理性和有效性。
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