中国空间科学技术

中国空间科学技术

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基于IDFT的指定方向图形状的阵列综合研究

姜永权   

  1. 汕头大学电子工程系ＡＩ＆ＰＲ开放实验室
  • 发布日期:1996-04-25

RESEARCH OF ARRAY SYNTHESIS WITH PREDETERMINED BEAM SHAPES BASED ON IDFT ALGORITHM

Jiang Yongquan(Electronic Department and AI&PR Open Lab, Shantou University, Shantou 515063)   

  • Online:1996-04-25

被引次数

1

摘要： 在卫星通信、遥感及综合孔径雷达等领域，指定方向图形状的阵列天线有着广泛的应用。基于逆离散傅立叶变换（ＩＤＦＴ）算法，提出了一种新的阵列综合算法。该方法具有计算量小、计算数值稳定性好等特点。结合加窗技术，可在主瓣赋形精度、主瓣宽度和副瓣电平间进行灵活折中，以达到不同的设计要求。

关键词: 天线阵；离散傅里叶变换；窗函数；算法

Abstract: he array antennas with predetermined beam shapes have applications in the fields of satellite communication, remote sensing and synthetic aperture radar (SAR), etc. A new algorithm for array synthesis based on inverse Discrete Fourier Transform (IDFT) is proposed in the paper. This algorithm has the advantages of minor calculation and best calculating stability. It can make a flexible trade--off between the shaping accuracy in the main-lobe and the magnitude of the minor-lobes if a window function is used.