antenna characteristic 中文意思是什麼

antenna characteristic 解釋
天線特性
  • antenna : n. （pl. -nae , antennas）1. 【動物；動物學】觸角。2. 【無線電】天線〈英國常用 aerial〉。
  • characteristic : adj 有特性的；表示…特性的，…特有的。 Japan s characteristic art 日本特有的藝術。n 特性，特徵，性...
  1. We acquired the system ' s dynamic response when the satellite attitude was adjusted and the mode of the antenna. then modal analysis and dynamic analysis have been done to the satellite - antenna system by using the finite element analysis ( fea ) software of ansys. through the analysis we got the system ' s connatural characteristic, the amplitude - frequency characteristic of harmonic response, the power spectrum density of random vibration response, the maximal amplitude and resuming time of impact response

    其次藉助ansys有限元分析軟體，對系統進行了模態分析和動力學響應分析，獲得了不同天線結構參數下的衛星?天線系統的固有特性，簡諧響應的幅頻特性，隨機振動響應的功率譜密度，以及沖擊響應的最大幅值和恢復時間等。
  2. Across the rigid - flexible coupling dynamic analysis, we acquired the coupled effects between the three - dimensional attitude motion of the satellite and the flexible vibration of the antenna ' s supporting beam, and got the dynamic behaviors of the system. and we found the change pattern of the antenna ' s structure parameters, which decide the system ' s connatural characteristic and its dynamic response

    通過對衛星?天線形成的剛柔耦合系統進行動力學分析，獲得了衛星的剛體運動與天線的彈性振動之間的耦合影響規律及其真實的動力學行為，得到了天線結構參數對衛星?天線系統的固有特性及其動力學響應的影響規律，為衛星姿態控制和天線結構優化設計奠定了基礎。
  3. The simulation results are compared to the normal dipole antenna in order to observe the influence of fractal and investigate the effect of antenna miniaturization. the relationship between miniaturization and fractal dimension is researched. the koch and 3 / 2curve fractal unit are applied to yagi - uda antenna, the performance like impedance characteristic and radiation pattern is simulated by cst microwave studio ?

    對其阻抗特性及輻射方向圖進行了模擬計算，並分別與未應用分形的普通半波振子天線相比較，觀察分形對天線性能的影響，以檢驗分形天線小型化的效果，研究了尺寸縮減性與其分形結構的分形維數之間的關系。
  4. While carrying out the scheme, at first, the basic theory of antenna, array antenna and electromagnetic absorption, the performance parameter of antenna and parabolic antenna are deeply researched. in conformity, the characteristic and calculation of aperture field and near - to - far - field transformation for radiation pattern are detailed analyzed. second, the factors such as, the amount of the antenna elements, mutual coupling between each element, ground and the buildings on earth ' s surface, which affect the performance of array antennas ’ resultant field are stressed discussed

    在系統實現過程中，課題首先從天線、陣列天線，以及電磁場計算方法的基本理論著手，分析了天線與拋物面天線的各項性能參數，以及天線的口面場和近-遠區輻射場的特點和計算;進而，更加深入的討論和研究影響天線陣列合成場強的各項因素，包括系統所使用的天線單元個數對陣列合成場的影響、天線單元之間由於互耦造成的影響、傳播過程中地面和/或地面建築物的影響等。
  5. Compare to the normal rectangular waveguide, ridge waveguide has the character of broader bandwidth, smaller dimension, lower equivalent characteristic impedance, etc. because of these merits, it is used more and more widely, such as broadband ridge waveguide filter, broadband direct coupler, diplexer, frequency converter, phase shifter, ridge waveguide slot antenna array, and so on

    與普通矩形波導相比，脊波導具有工作頻帶寬、尺寸小、等效特性阻抗低等特點。由於脊波導本身的特點，使其得到了越來越多的應用，例如寬帶脊波導濾波器、寬帶定向耦合器、雙工器、變頻器、移相器、脊波導縫隙天線陣等等。
  6. The outlines of thesis are as follows : for the configuration of gis and the characteristic of partial discharge, the thesis analyses the electromagnetic waves excitated by the pd signal and the reason of a coupler built in gis inducing pd signal in terms of the electromagnetic theory and antenna theory

    主要工作有：針對gis結構及內部局部放電特點，分析了發生局部放電后信號所激發的電磁波傳輸特性，並從電磁場理論及天線理論角度分析內置傳感器的局部放電耦合原理。
  7. This paper begins with an overview of the fundamentals of adaptive antennas. the correspondence between a spatial filter and the fir filter is illustrated, and the spatial filter characteristic of adaptive antennas is investigated by dmi and ls - drmtcma algorithms. the discrete - time transmission model of synchronous cdma systems with antenna arrays is also developed

    本文首先對自適應天線的基本原理進行了簡要介紹，建立了陣列接收的同步cdma系統離散時間傳播模型，並論述了空域濾波和時域fir濾波器的類比性，用dmi和ls ? drmtcam演算法模擬了自適應天線空間濾波性能。
  8. It has the characteristic of non - gear - box, large output torque, small volume, easy control, fast response, high track precision, high reliability etc. the system has potential advantages over substituting for traditional hydraulic or pneumatic missile actuator servo control system and has wide prospect in the fields of aerial actuator, servo valve, robot, radar antenna etc. the system ' s operation principle, control idea, functions and realization of each component are discussed in detail

    該系統在取代傳統的液壓、氣動導彈舵機伺服控制系統方面有很大潛力，同時在航空舵機、伺服閥，以及機器人關節的直接驅動、雷達天線等領域具有廣闊的應用前景。論文詳述了系統的工作原理與控制思想，以及系統方案的設計和各組成部分的功能與實現方法。
  9. The antenna system has a good characteristic with wide symmetrical beamwidth, broad impedance bandwidth and compact structure

    整個線性漸變槽天線系統具有對稱波瓣、寬頻帶、寬主瓣和結構緊湊等特點。
  10. Based on the idea of improving the frequency characteristic of the two parameters above, a novel method of improving the bandwidth of the slot array antenna is presented in this paper, which uses a ridged waveguide instead of a rectangular waveguide as the radiating waveguide

    本文以改善這兩個參數的頻率特性為出發點，提出了一種展寬波導裂縫天線帶寬的新方法，即用脊波導代替矩形波導作為輻射波導。
  11. In this dissertation, the performance of linearly tapered fin - fed slot antenna ( lwsa ) is discussed in theory, simulation and experiment. the radiation pattern characteristic influenced by changes of antenna ’ s dielectric material, tapered shape and dimension is studied detailedly. though the tapered slot antenna design is very important, a good waveguide - to - finline taper transitions is also needed because they could not thought over separately

    本文主要採用理論分析、數值模擬和實驗等手段對線性漸變槽天線的特性進行了研究，分析了介質材料、天線漸變段以及天線尺寸對天線方向圖的影響，分別設計了天線罩、線性漸變槽天線以及天線的饋電結構。
  12. 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。
  13. Natural characteristic analysis not only verifies whether the natural frequencies and mode shapes of the antenna are reasonable or not, but also is the base of the structural response analysis, fatigue resistivity computing and the other dynamics problems. the structure design of antenna is a complicated systems engineering, which is generally limited to multiple objects that influence each other, so we need to keep the balance among those objects by decision - making technology of multiple objects to ensure every target optimized

    固有特性的分析不僅能檢驗天線結構的固有頻率和振型是否合理，而且也是結構響應分析、動強度計算等其他動力學問題研究的基礎；天線的結構設計是一個復雜的系統工程，它通常受到多個目標的限制，而各目標往往是相互影響的，甚至是相互矛盾的，因此需要藉助多目標決策技術，平衡各目標，以保證空間天線最優的滿足各項設計指標。
  14. The structure of the antenna array is given. also, the feasibility of this structure is proved through computer simulation and channel transfer characteristic measurement

    給出了相應的天線陣列結構，通過計算機模擬與通道傳輸特性測試驗證了使用極化天線陣列的可行性。
  15. Antenna characteristic impedance

    天線特性阻抗
  16. According to the reciprocal characteristic of dual - mcde reciprocal ferrite phase shifters, the antenna only requires to provide the sa : lle beams of operation between the trtinsmit and receive beams. in addition, 1he phased shifter can operate in various polarizations such as linear polarization or circular polarization, which is adiipted to the development of modern ra ( 1ar technologies

    對電掃描相控陣天線來說，雙模互易式鐵氧體移相器的互易特性可使收、發在同一特定波束位置上工作；此外，雙模互易鐵氧體移相器可以在線極化、圓極化等多種極化方式下工作，適應了現代雷達技術的發展。
  17. Based on the characteristic of system, the antenna is designed with one transmitter and two receivers and the localization principle of twsr is analyzed. target localization algorithm and error distribution computing method based on time - only - localization ( tol ) are proposed

    同時根據系統特點，天線採用單發雙收方式，分析了穿墻探測雷達定位原理，提出了基於波達時間（ tol ）的目標定位演算法和誤差分佈計算方法。
  18. Feedback correction and characteristic improving for antenna servo system of tracking radar

    跟蹤雷達天線隨動系統的反饋校正及特性改善
  19. In this paper, vivaldi uwb antenna is analyzed and designed from antenna structure, frequency - domain characteristic and time - domain characteristic three aspects, which is present good technology support for the design of the uwb antenna

    本文從天線的結構，頻域特性和時域特性三個方面對vivaldi超寬帶天線進行了分析和設計，為超寬帶天線的設計提供了良好的技術支持。
  20. Radiation characteristic of photonic - band - gap vlasov antenna

    天線輻射特性研究
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