轉動天線 的英文怎麼說

中文拼音 [zhuǎndòngtiānxiàn]
轉動天線 英文
rotary antenna
  • 轉 : 轉構詞成分。
  • 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...
  • 轉動 : 轉動turn; run; twirl; roll; revolve; rotate
  1. After that it elaborated thesystem design thought of the antenna test turntable automatic test system in thearticle second chapter, including the equipment composition of the antenna testturntable, the technical specification request, the introduction of the electricallycontrolled system and the goniometric system, and elaborated the test systemsoftware platform design proposal

    接著在本文的第二章論述了天線測試轉臺自動化測試系統的總體設計思想，包括天線測試轉臺的設備組成、技術指標要求、電控系統和測角系統的介紹，並且論述了測試系統軟體平臺的設計方案。
  2. The antenna test turntable automatic test system used the multi - machinecollecting and distributing controlling mechanisms in this article. the lowerposition machine realized the real - time control of the electrically controlledsystem and the goniometric system, keeping the communication with the upperposition machine, and fed back the turntable condition information, and so on ; the upper position machine realized the data acquisition of the various axialangles, the transmission of the control command and the monitoring of thecurrent turntable running status, and so on

    本文所研製的天線測試轉臺自動化測試系統採用的是多機集散控制機制? ?下位機實現對轉臺電控系統、測角系統實時控制並保持與上位機通信以及反饋轉臺狀態信息等工作;上位機實現轉臺各軸角度數據採集、控制命令發送以及監視當前轉臺運行狀態等工作。
  3. Many planets ( for example, ganymede, mercury, the earth, jupiter and saturn ) and stars ( for example, the sun ) possess intrinsic magnetic fields. the explanation for their existence and variation remains a great challenge to planetary scientists and astrophysicists. this article attempts to review some recent developments and difficulties in the study of magnetohydrodynamics for the electrically conducting fluid interiors of planets and stars. it is the fluid motions, usually driven by thermal convection, that generate and sustain magnetic fields through magnetohydrodynamic processes in planets and stars. in planets, the magnetohydrodynamic processes are strongly affected by the combined and inseparable effects of rotation, magnetic fields and spherical geometry. the key dynamics involves the interaction between the coriolis and lorentz forces. in the sun, it is the solar tachocline, a thin shear flow layer located at the base of the convection envelope, that plays an essential role in the solar magnetohydrodynamic processes which produce the 11 - year sunspot cycle. some results of a new nonlinear three - dimensional solar dynamo model are also presented

    許多行星（如木衛三，水星，地球，木星和土星）和恆星（如太陽）具有內部磁場.對這些磁場的存在和變化的解釋對行星科學家和天體物理學家是一個巨大的挑戰.本文試圖總結行星和恆星的導電流體內部磁流體力學研究的新近發展和困難.一般由熱對流驅動的流動通過磁流體力學過程產生並維持在行星和恆星中的磁場.在行星中磁流體力學過程強烈地受到轉動，磁場和球幾何位型的綜合影響.其動力學的關鍵方面涉及科里奧利力和洛倫茲力間的相互作用.在太陽中其流線，即處于對流層的薄的剪切流層在太陽的磁流體力學過程中扮演了一個基本的角色，並由之產生了11年的太陽黑子周期.本文也給出了一個新的非線性三維太陽發電機模型
  4. Assembly design and dynamic simulation of antenna rotating platform system of shipborne radar

    艦載雷達天線轉臺系統的裝配設計及運動模擬
  5. 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。
  6. Occasionally for no reason whatsoever, your car would lock you out and refuse to let you in until you simultaneously lifted the door handle, turned the key, and grab hold of the radio antenna

    有時候你的汽車會無緣無故地將你鎖在外面，除非你同時拉著車門把手、轉動車鑰匙、再抓著車上的收音機天線，它才會讓你進去。
  7. After the price advances, making higher bottoms and higher tops for two days or more, you move the line on the 2 - day chart up to the high of each day until there is another reversal

    價格上漲后，形成高底和高頂持續兩天或兩天以上，你就要在二日圖上向上將線移動到高於任何一天價格的地方，直到另一個反轉的出現。
  8. However, df pre - processing is not required in a interferometer direction finder. it only makes use of the phase relations or differences of sensors disposed at different position. azimuth and elevation are caculated from the phase differences or displayed directly on a crt drived by the voltage or current from the phase differences

    干涉儀測向不必進行測向信號預處理而是直接或間接求取在空間上分開的傳感器上感應電勢之間的相位關系，即干涉相位差，方位角或仰角是直接由干涉相位差計算得到，或將兩基線正交的天線陣的干涉相位差轉化為驅動電壓（電流）分別加到crt陰極顯示器的垂直偏轉線圈和水平偏轉線圈，模擬顯示出來波方位，干涉儀測向為典型的相位測向方法。
  9. It has many good qualities such as energy saving, simply structured, cheaply and easily to operate and maintain, there is no revolving parts in the cooling part and can be run with liquid. for the above - mentioned reasons, the thermal separator has a lot of applications in chemical processes and engineering transformation, especially in the fields of liquid products recover from associated gas in oil field or light hydrocarbon gas in torch line, dehydrate natural gas, provides cold resource for scientific research

    熱分離機是一種高效節能的新型氣體膨脹製冷裝置，具有結構簡單、造價低廉、操作維護方便、壽命長、製冷部分無轉動件及可以帶液運行等特點，有廣闊的應用前景，並已在油田伴生氣或火炬管線中輕烴的回收、天然氣脫水、為科學研究提供冷源等場合得到應用。
  10. Axial fixation modes of the drive system of antenna pedestal

    天線轉臺驅動系統的軸向固定方式
  11. Rotating pipes system are often encountered in the rotary machinery of engineering applications. with the popularity of rotary machinery in industry, the characteristics of the fluid flow and heat transfer in the controlling pipe system, the transporting pipe system, and the cooling pipe system are the main factors to improve the efficiencies of the rotary machinery. meanwhile, when a man is in the aerocraft with a high rotating speed or in the rotating machine for training, the flow in the blood vessel of body will change evidently and so the study on the flow in the blood vessel also becomes the important research field in the aerial - physiology

    在旋轉狀態下，這些曲線管路系統中的流動和換熱特性將會發生什麼樣的變化，是對管路系統的性能以及旋轉裝置的運行安全至關重要的問題，也是管道流動中研究很少，又是迫切需要解決的課題；同時，這個課題還可以應用於生物流體力學：當人體處于作高速旋轉或曲線運動的飛行器或宇航飛行員訓練的旋轉裝置中，人體血管內血液流動將會發生什麼樣的變化，是航天生理學研究的重要課題。
  12. According to the automatic control theories, the hardware of the system is divided into the control equipments and the control object. the control object is the step motor which makes the antenna platform rotate

    控制裝置由微機、 a d轉換器、脈沖信號發生器和步進電機驅動器組成，被控對象則是帶動天線轉臺轉動的步進電機。
  13. After analyzing the existing ambiguity resolution methods the dissertation investigates the baseline rotation method based on the antenna - swap idea, and develops the fixed axis rotation maximum - minimum method ? farmm and the equivalent rotation maximum - minimum method ? ermm applicable for static basement and moving vehicle respectively. the former lowers the demands on rotation device while the latter improves the flexibility of antennae installation. meanwhile the dissertation also brings forward an ambiguity function search method which needs only one single epoch data with the outer aided information, and investigates the accuracy requirements for the assistant pointing information

    其次，通過與gps等多星系統定向關鍵技術的對比分析，指出雙星定向模糊度確定的難度;在分析現有模糊度求解方法的基礎之上，研究了基於交換天線思想的轉動基線模糊度確定方法，並提出了適合於靜基座的定軸轉動極大/極小值farmm法，以及適合於地面運動載體的等效轉動極大/極小值ermm法，前者降低了對轉動機構的要求，後者則提高了天線安裝的靈活性;同時，提出了一種藉助外部輔助信息的模糊度函數搜索法實現單歷元雙星定向，並分析了對外部輔助單軸姿態信息的精度要求。
  14. The antenna driver is the key part of the secondary planet system. in this paper full - digital ac - servo control system based on dsp ( digital signal processor ) is adopted to control antenna rotating, which improves greatly system reliabity and stability

    本文就是為解決某型號衛星天線的穩定旋轉而專門設計的以電機專用控制晶元dsp為控制核心的全數字化交流伺服驅動系統，從而極大提高整個系統轉速穩定度和可靠性。
  15. Based en the concept of integrated electrical and mechanical dynamics, an active vibration control circuit is connected with the servo loop of the antenna system to decrease the lateral vibration using the rotation energy

    本方法主要以機、電一體的觀念，在天線的電機動力伺服系統內，加入一抑制?路，以天線電動機的旋轉動力抑制天線的振動。
  16. The satss is an antenna pointing servo system with ultra - low speed and high accuracy, driven by a rare earth permanent magnet ( repm ) brushless dc torque motor. to reduce torque ripple, the repm brushless dc torque motor has a slotless armature, and uses sinusoidal wave driven technology

    衛星天線跟蹤伺服系統為超低速高精度天線指向控制系統，該系統使用稀土永磁式無刷直流力矩電機作為天線的驅動機構，為降低轉矩脈動，電機採用無槽電樞結構設計，並使用正弦波驅動方式。
  17. Application of smart antenna in anti - jamming for mobile satellite communication terminal

    移動通信系統中的波束轉換智能天線設計
  18. Rotate the unit horizontally for optimum reception. a ferrite bar antenna is built into the unit

    水平轉動收音機找出最佳收音效果的方位。機器內裝有鐵氧體棒形天線。
  19. Torsion vibration and motion - induced noise of h - field antenna

    磁場天線的扭轉振動及運動感應噪聲研究
  20. Aerospace series - pipe couplings, 60 o, spherical, in titanium alloy ti - p64001 - swivel nuts for thrust wire

    航空航天系列. 60度鈦合金ti - p64001球形管接頭.拉力張線用轉動螺套
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