波束指向 的英文怎麼說

中文拼音 [bōshùzhǐxiàng]
波束指向 英文
beam pointing
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 束 : Ⅰ動詞1 （捆; 系） bind; tie 2 （控制; 約束）control; restrain Ⅱ量詞（用於捆在一起的東西） bundle;...
  • 指 : 指構詞成分。
  • 波束 : wave beam; beam; wave packet波束空間 [半] wave number space
  • 指向 : directing; sensing; sense of orientation
  1. 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。
  2. 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。
  3. 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。
  4. Then, the capacities of round - off method, two probable value method ( tpvm ), shift and compensate phase feeding method ( scpfm ) and shift compare and compensate phase feeding method ( sccpfm ), are compared in improving the accuracy of beam pointing

    接著，通過模擬實例比較了舍尾法、二可能值法、遞推補償饋相法、遞推比較補償饋相法等幾種提高波束指向精度方法的優劣。
  5. Portable multiple beam sonar system is mainly used to survey the underwater terrain of huge reservoir. firstly, the thesis introduces the index of performance. secondly, it explains the ranging principle of sonar system, and simulates the processing procedure on computer, gives the beam pattern

    本文首先介紹了地形聲吶的設計指標，然後敘述了多波束地形聲吶的測距原理，並對具體的實現過程進行了計算機模擬，給出了定向波束圖案。
  6. 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。
  7. 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。
  8. 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。
  9. 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。
  10. 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
  11. This method is easy to implement and has no restriction on array geometry and sensor patterns ; three methods for the design of broadband frequency invariant beamformer are proposed, which are the method of resampling signals received by the array, the dft ( discrete fourier transform ) interpolation method and adaptive synthesis method, respectively. examples and performance analyses are given for each method ; a simplified linear constrained minimum variance broadband adaptive algorithm that based on dft interpolation method is presented. compared with conventional broadband adaptive algorithms, the presented method can reduce computation work greatly

    提出了一種簡單、易於實現的恆定束寬波束形成器設計方法，該方法對陣形和陣元指向性沒有任何限制；分別提出了基於陣列接收數據重采樣、基於dft插值和自適應綜合的三種具有頻率不變波束圖的寬帶波束形成器設計方法，對于每一種設計方法都給出了一個設計實例並做了性能分析；提出一種基於dft插值的簡化線性約束最小方差寬帶自適應陣列演算法，該方法可以大大降低自適應陣列的運算量。
  12. The wsf method and ml method can be used in direction finding of coherent sources. we find that tam has the widest direction finding range while the available direction finding ranges of the dsam, sam _ isp, sam _ aisp, sam _ gsp and sam _ agsp are in a certain area centered at the look direction. the sam _ isp, sam _ aisp, sam _ gsp and sam _ agsp can change the effective direction finding ranges by adjusting their inner parameters and furthermore they can improve the sidelobe suppression effect compared with the dsam method

    得到tam的測向范圍最寬，基於后五種簡化陣列流形的測向方法其測向有效范圍均是集中在波束指向附近的一定范圍內，其中sam _ isp 、 sam _ aisp 、 sam _ gsp和sam _ agsp對應的測向范圍可通過調整內部的參數進行相應的調整，相應地較dsam也可改善對旁瓣源的抑制效果。
  13. A single correction method is provided, that is, based on the height finding value of the primary radar and the height finding value of the secondary radar, the paper calculates the adjustment quantity of the antenna beam direction, micro - adjusts the arrary of antenna, and so that it improves the accuracy of height finding

    並提出了一種簡單易行的修正方法，即根據一次雷達的測高值和二次雷達的測高值計算出天線波束指向的調整量，對天線陣面波束指向進行微調，從而提高了測高精度。
  14. However, the optimal results being a statistical average, the antenna pattern of random phasing is unsteady with the scanning angle and scanning period, so it is not easy to form the actually needed codes for control of the antenna scanning

    應用遺傳演算法對隨機饋相方案進行優化，能有效抑制寄生副瓣的出現，形成掃描空域確定的波控代碼，實現相控陣波束無慣性的精確指向。
  15. As an example, the time domain low - sidelobe wcbb is designed for a 12 - element arc array. simulation results show the effectiveness of the proposed method

    針對陣元具有指向性的圓弧陣，設計了具有低旁瓣特徵的時域恆定束寬波束形成器。
  16. Robust adaptive beamforming against pointing error

    存在指向誤差時的穩健自適應波束形成演算法
  17. The radiation orientation of tow - dimensional phased arrays byusing the method of two probable numbers is investigated, and an effective formulation for such an investigation is presented in this paper

    研究了二可能值法對二維相控陣天線波束指向的影響，並推導出有效實用的理論公式。
  18. Study of active periodical structure s controlling the direction of reflector electromagnetic wave

    有源周期性結構控制電磁波反射波束指向研究
  19. Besides, it ’ s also very convenient to add many kinds of phase errors required by the phase error compensation and sar image processing research farther. for imaging algorithms, range - doppler algorithm is extended to broadside stripmap airborne bistatic sar successfully

    另外，在我們方法的流程中可以方便地加入載機運動參數誤差、天線波束指向誤差及頻率源的穩定性等各種相位誤差，也為今後進一步研究相位誤差補償及圖像處理等技術打下了良好的基礎。
  20. Abstract : the radiation orientation of tow - dimensional phased arrays by using the method of two probable numbers is investigated, and an effective formulation for such an investigation is presented in this paper

    文摘:研究了二可能值法對二維相控陣天線波束指向的影響，並推導出有效實用的理論公式。
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