grating lobe 中文意思是什麼

grating lobe 解釋
光柵波瓣
  • grating : n. 1. 格柵，格子；（船上作地板或透光用的）格子板，格子蓋。2. 【物理學】光柵。adj. 刺耳的，使人煩躁的，討厭的。n. 摩擦，摩擦聲。adv. -ly
  • lobe : n. 1. 耳垂。2. 【植物；植物學】裂片；圓裂片；滾裂片。3. 【無線電】波瓣，瓣。4. 【解剖學】（肺、腦、肝等的）葉。5. 【機械工程】凸角。6. （氣球的）舵囊，氣袋。
  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. We take the relation of grating - lobe between frequency, arrays commutation and concentric ring array into consideration, and select the proper elements for different frequency successfully. finally, adaptive digital beam forming of broadband signal in circular array are investigated

    分析了在寬帶信號情況下，如何從共形陣陣元中選擇合適的陣元用作數字波束形成，並針對一應用實例進行了陣元選擇設計。
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