旁瓣對消 的英文怎麼說

中文拼音 [bàngbànduìxiāo]
旁瓣對消 英文
side lobe cancellation
  • 旁 : 名詞1 （旁邊） side 2 （漢字的偏旁） lateral radical of a chinese character （e g 亻 氵 etc ）Ⅱ形...
  • 瓣 : Ⅰ名詞1 （花的分片） petal2 （植物的種子、果實或球莖可分開的小塊兒） clove; segment 3 （物體破碎後...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 消 : 動詞1 （消失） disappear; vanish 2 （使消失; 消除） eliminate; dispel; remove 3 （度過; 消遣） pa...
  1. First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled

    首先在推導超聲相控線陣換能器聲場的指向性的基礎上，就各個晶片幾何參數對指向性指標（主瓣寬度、旁瓣幅度、消除柵瓣） 、聲壓幅值、陣元振動模式、陣元間互輻射、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述，並在綜合各方面影響的基礎上，提出了晶片幾何參數優化設計的原則和方法，編寫了設計程序和界面。
  2. By theory and practice simulation, the several types of constant envelope modulation techniques are analyzed and compared, including theirs modulation principle, phase path, the modulated wave envelope, power spectrums, error bit rate and the influence of its power spectrums of the band - limited and non - linear, etc. especially we have researched the ijf - oqpsk modulation technique, and the performance of its inter - symbol interference and time jitter free, and its strongly resisting of spectral spreading

    結合理論和實驗模擬結果，分析討論了衛星通信中的各種恆包絡調制技術，對它們的調制原理，相位路徑，已調波包絡，功率譜密度，誤碼性能，以及帶限非線性通道對其功率譜的影響等方面都作了研究和比較。特別研究了ijf ? oqpsk在消除碼間干擾和定時抖動方面的性能及其優良的旁瓣特性和抑制頻譜擴展特性。
  3. The gsc can retain high performance in interference - reduction under the condition of less array elements

    旁瓣對消器可以在陣元較少的情況下依然保持高的干擾抑制性能。
  4. Frequency code is not uniformity distribution and keeps to a probability distribution function defined by the spectral characteristics of the target of interest. the phase code is equally duality pseudo - random sequence and used to reduced the sidelobes of the signal correlation function. and the mismatch - phase sequence is corresponding with the frequency sequence one by one

    而頻率編碼為不均勻分佈，由所觀測目標的頻譜信息提取出概率密度函數決定頻率編碼序列的分佈；相位編碼為二元的偽隨機序列，採取均勻的二相編碼，消減同頻脈沖帶來的過高的相關函數的旁瓣；而失配相位為與頻率編碼相一一對應于各子脈沖中。
  5. The signal effect in the conventional adaptive side lobe canceller system is studied

    首先研究了常規的自適應旁瓣對消系統中的目標效應問題。
  6. A new adaptive side lobe canceller algorithm combined with polarization filter is proposed in allusion to the system above

    針對該系統提出了結合極化濾波的自適應旁瓣對消新演算法。
  7. And target signal cancellation is a serious problem. many signal processing techniques have been proposed to avoid signal cancellation

    因此，在寬帶旁瓣對消器中目標信號被消除是一個非常嚴重的問題。
  8. The thesis brings forward the scheme that combines polarization filter and side lobe canceller to improve the anti - jamming ability of radar

    論文提出將極化濾波與旁瓣對消結合起來提高雷達抗干擾性能的方法。
  9. To overcome the signal effect, we renovate the auxiliary antenna in the conventional side lobe canceller system to two - orthogonal - channel polarization antenna

    為了克服目標效應，將常規旁瓣對消系統的輔助天線改為雙極化正交天線。
  10. And the prototype system would be developed. and this dissertation mainly includes the following work : 1. the analysis and compare of partial adaptive algorithms in order to choose an optimal algorithm

    本論文主要包括以下4部分內容： （ 1 ）部分自適應演算法研究：對基於廣義旁瓣對消結構的padbf和子陣級padbf實現方案進行了演算法模擬和比較。
  11. Thus the main and auxiliary polarization radars form a side lobe canceller system. based on the modeling of this system, an anti - jamming filter algorithm in the polarization - spatial domain is brought forward

    針對接收全極化雷達，在其旁邊放置全向雙極化正交陣列天線與雷達構成旁瓣對消系統，並根據系統模型提出了極化域-空域聯合濾波抗干擾演算法。
  12. Theoretical analysis and computer simulation prove that the scheme can overcome the signal effect and improve the anti - jamming ability of radar system. then as to the polarization radar, a scheme that deploys omnidirectional two - orthogonal - channel antenna array besides the main antenna is proposed

    理論分析與模擬均驗證了，與常規旁瓣對消系統相比，該思路可以有效抑制目標效應，改善雷達系統的抗干擾性能。
  13. Theoretical analyze and computer simulation prove that the side lobe canceller system using polarization radar can depress jammer while not damaging the signal, the overall performance is better than that of the system using polarization radar only in the auxiliary antenna

    理論分析和模擬實驗表明使用全極化雷達的旁瓣對消系統，可以在抑制干擾的同時盡量不損失目標信號，系統整體性能優于主天線為單極化時系統的性能。
  14. The content can be outlined as follows : the introduction of broadband beamforming, the study of a robust broadband generalized side lobecanceller ( gsc ), the discussion of an integral constraint beamforming based on subband processing. the broadband beamforming can be designed in time domain or frequency domain

    內容包括：寬帶波束形成器的時域處理的介紹，一種穩健的寬帶旁瓣對消器；基於子帶處理的積分約束的波束形成器的設計；並在文中簡述了寬帶波束形成器時域處理以及頻域處理的優缺點。
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