環形天線 的英文怎麼說

中文拼音 [huánxíngtiānxiàn]
環形天線 英文
annular antenna
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 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...
  • 環形 : annular; ringlike; ring form; bight; annularity環形癌 annular carcinoma; 環形電路 [訊] loop circu...
  1. Circular polarized loop vee

    圓極化環形天線
  2. Xanthophyli cycle has been widely concerned since the finding that it has the function in heat dissipation. with the trans - thylakoid ph gradient, zeaxanthin ( z ) together with antheraxanthin ( a ) can absorb excess energy from chlorophyll and release it as heat, thus protect the photosynthetic apparatus from photodamage by high light. violaxathin de - epoxidase ( vde ) is the key enzyme in xanthophylls cycle

    目前普遍認為葉黃素循環的色素定位於天線色素蛋白復合體上，在跨膜質子梯度（ ph ）形成后，玉米黃質（ z ）和環氧玉米黃質（ a ）能夠從葉綠素中吸收過多的激發能，並以熱能的形式耗散到體外，從而保護光合器官免受強光的破壞。
  3. Alford loop antenna

    愛福特環形天線
  4. This ring antenna can receive

    該環形天線能在360動
  5. Highly dynamic ring antenna

    高動態環形天線
  6. High dynamic ring antenna

    高動態環形天線
  7. Sakura : evolution of the absolutely wonderful s700 ( did that sound like i love mine ? ) with a more futuristic design, including the famous “ loop ” antenna seen on z200 / j300

    S700的升級版。有一個更未來高科技的外觀設計，而且有z200 / j300上的環形天線設計。
  8. Then, we establish the finite element analysis models of the antenna in different structure layout, and obtain the corresponding frequencies and model shapes. finally, according to the importance of each object, we set up the model of multiple objects that aims to maximize the first natural frequency and minimize the mass. combining orthogonal experiment and variant weighting coefficient method, we formed an effective multiple objects optimized algorithm basing on the neural network and genetic algorithm

    本文首先詳細的敘述了天線結構的各組成單元，闡明了天線反射拋物面的形成原理；然後在ansys軟體環境中建立了不同結構布局下天線的有限元分析模型，分析計算了各種情況下天線的的固有頻率與振型；最後依據天線各指標的重要性，建立了以一階固有頻率最大、質量最小為目標的天線結構多目標優化設計模型，並基於神經網路和遺傳演算法，結合正交實驗和變加權系數技術，形成了一種有效的多目標優化演算法，在matlab平臺下實現了天線的結構多目標優化設計計算程序，求得了天線的最佳結構參數。
  9. The spot responder system which is the necessary part of ctcs is analyzed in the dissertation and three key technologies of the channel in the responder system are researched. firstly, a new kind of rectangular plate magnetic inductive loop antenna is designed to transmit the power frequency. researching the near field inter - inductive characters, the relationship among the inductive efficiency, the perimeter and the conductor width of the antenna is found out

    本文在對ctcs中的點式應答器系統原理及組成進行分析和消化的基礎上，對系統中通道的幾個關鍵技術進行了詳盡的研究，主要分為三個方面: 1 ，提出並研製了新型的片式環形磁感應天線，並對傳輸能量載波的天線的近場互感特性進行了分析，得到互感效率隨天線的周長大小以及導帶寬度的變化規律，並通過計算機模擬和試驗對天線的近場波瓣圖進行了研究;通過分析寬帶匹配技術中的實頻法理論，設計了信號載波天線的寬帶匹配網路。
  10. The system uses the permanent magnet synchronous machine as the driver motor based on the idea of polygonal flux linkage locus and the permanent magnet brush - less motor is as the momentum balance motor by means of speed and current loop in order to track driver motor precisely and rapidly. the harmonious control of driver motor and balance motor is realized by making full use of the dsp hardware resource and complicated programmable logic device. the software design is composed of c and assembly language to realize motor control arithmetic of polygonal flux linkage locus

    衛星天線伺服控制系統以正弦波永磁同步電機作為驅動電機，採用多邊形磁鏈軌跡法（電壓空間矢量法）的控制策略；動量平衡電機採用永磁無刷直流電機，通過電流環、速度環達到快速、精確跟蹤驅動電機的目的，確保了衛星姿態恆定；設計方案中充分利用了dsp硬體資源和復雜邏輯陣列實現了驅動電機和平衡電機的協調控制，並通過c語言和匯編語言的混合編程實現了電機的多邊形磁鏈軌跡控制演算法。
  11. Built to withstand weather the conical radome housing, uv - resistant material and a tubular mounting nut specially designed for ease of weatherproofing, assure superior performance while

    圓錐形天線屏蔽器盒子、防紫外線材料和一個設計可以增強抵抗風雨管狀螺母，保證在全球越來越惡劣的環境下正常工作。
  12. A calculation method and calculation results that show that a new kind of shaped paraboloid antennas can produce a ringy radiation pattern is presented

    摘要通過數值計算發現：將拋物線繞通過焦點的非拋物線對稱軸旋轉而形成的賦形拋物面天線可產生環狀的方向圖主瓣（此主瓣指的是主瓣最大值處） 。
  13. The koch fractal is also applied to small loop antenna and the analysis results show that the koch fractal can improve the input resistance of small loop antenna

    Koch分形也被用於環天線，研究結果表明koch分形可增加小環的輻射電阻。
  14. 250 - 350 meter max distant is always depend on the factor baudrate, antenna

    250 350米最大通訊距離與環境天線形式和通訊速率均相關
  15. By using pro / engineer, three - dimensional parametric model of arm is presented for further design of arm and layout between satellite and antenna. independent variable parameters of hoop truss and relations between assemblies are obtained by analyzing the function, basic theory and construction properties of hoop truss

    通過對衛星天線環形桁架的功能、結構及工作原理的分析，確定了天線環形桁架結構的獨立可變參數並建立了各裝配間的參數協調關系，在此基礎上藉助三維參數化造型技術，獲得了天線環形桁架的三維參數化實體模型。
  16. This paper investigates the propagating characteristics of the layered earth in a loop antenna case, the result can be served as a helpful guideline for the system design and application

    對環狀發射天線情形下分層大地的有關通道特性進行了探討，以期為該系統設計及工程應用提供有益的指導。
  17. The distribution of pre - stress in parabolic net of astromesh deployable antenna plays an important role in design and analysis of this kind of deployable antenna, a common method to solve this problem is non - linear finite element method

    環形桁架可展天線中心索網的預拉力配置問題是此類天線結構設計與分析的重點，目前，常採用的解決方法為非線性有限元平衡迭代。
  18. Following the developing of the aeronautical technology, higher request was brought forward to deployable antenna on satellites from every relative field. a lot of structural concept for deployable antenna was given out by aeronautic scholar. astromesh deployable antenna is one of them, which has most potential for space application

    隨著宇航科技的發展，各相關學科對空間可展天線提出了更高的要求，主要體現在大口徑、高精度兩方面，為此各國學者提出了形式眾多的空間可展天線結構概念，環形桁架可展天線是其中最具潛力的結構形式之一，是本文研究的一個重要方面。
  19. A large astromesh deployable antenna which is a project supported by state committee was designed and analyzed in this paper. the design and analysis process was described in detail. through the parallel analysis of four common type of cable - net for astromesh antenna and the parameterized analysis of every kind of structural parameter, the influence to static and dynamic characteristic of astromesh deployable antenna by the type of cable - net and every kind of structural parameter was given out

    結合課題組承接的科研項目，對一大型環形桁架可展天線結構實例進行了設計與分析，對設計分析的各個環節進行了詳細的闡述，通過對該類天線四種常用索網形式的對比分析及各類結構參數的參數化分析，得出了索網形式及各類結構參數對其靜、動力特性的影響規律，對此類可展天線的設計具有指導意義。
  20. The above algorithms can all be applicable to a non - uniform array where the number of users can be greater than the number of antennas. computer simulation and practical

    上述兩種方案的各種演算法都不依賴于天線陣列的幾何形式，並且適用於移動用戶數大於陣元數的實際通信環境中。
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