Array Manifold Modeling for Conformal Array Antenna

WANG Bu-hong; GUO Ying; WANG Yong-liang; QI Zi-sen

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Array Manifold Modeling for Conformal Array Antenna

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- Array Manifold Modeling for Conformal Array Antenna
- Acta Electronica Sinica Vol. 37, Issue 3, Pages: 481-484(2009)
- 作者机构：
  
  1. 空军工程大学电讯工程学院,陕西,西安,710077
  2. 空军雷达学院兵器运用工程军队重点实验室,湖北,武汉,430019
  3. 空军工程大学电讯工程学院陕西西安,710077
  4. 空军雷达学院兵器运用工程军队重点实验室湖北武汉,430019
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911TN823
- Published：2009
- 稿件说明：
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WANG Bu-hong, GUO Ying, WANG Yong-liang, et al. Array Manifold Modeling for Conformal Array Antenna[J]. Acta Electronica Sinica, 2009, 37(3): 481-484.
DOI：

WANG Bu-hong, GUO Ying, WANG Yong-liang, et al. Array Manifold Modeling for Conformal Array Antenna[J]. Acta Electronica Sinica, 2009, 37(3): 481-484. DOI：

摘要

共形天线阵列流形的数学建模是共形阵列天线信号处理的前提和基础.由于载体曲率和单元方向图指向的差异

在共形天线阵列流形的建模中

我们遇到的突出难题是如何实现单元极化方向图在阵列全局坐标系中的有效建模.首先利用三次欧拉旋转变换构造了任意三维几何载体共形天线全局直角坐标系到单元局部直角坐标系旋转变换的统一框架

并以此为基础

实现了共形天线全局极坐标系到局部极坐标系的空间旋转变换和单元极化方向图的全局旋转变换.最后

通过柱面共形阵列天线固有的遮蔽效应进一步验证了单元方向图旋转变换的正确性.

Abstract

Efficient modeling of array manifold is the essential prerequisite for the array signal processing.Due to the variable curvature of the platform and different orientations of elements

the most serious challenge faced in the modeling of array manifold for conformal array antenna is the element polarized pattern modeling in the global referenced coordinates.A uniform frame of the rotation transformation of the global Cartesian coordinates to the element local Cartesian coordinates is first established with the help of the Euler rotation.The rotation transformation of the polar coordinates of the global array to the local elements and the polarized pattern rotation of the local to the global coordinates are realized subsequently.The modeling method proposed is verified with the simulation of inherent shade effect of circular cylinder conformal array antenna.

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