Mutual Coupling Calibration for Conformal Array Antenna with Instrumental Sensors

WANG Bu-hong; GUO Ying; WANG Yong-liang

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Mutual Coupling Calibration for Conformal Array Antenna with Instrumental Sensors

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- Mutual Coupling Calibration for Conformal Array Antenna with Instrumental Sensors
- Acta Electronica Sinica Vol. 37, Issue 6, Pages: 1283-1288(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
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911
- Published：2009
- 稿件说明：
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WANG Bu-hong, GUO Ying, WANG Yong-liang. Mutual Coupling Calibration for Conformal Array Antenna with Instrumental Sensors[J]. Acta Electronica Sinica, 2009, 37(6): 1283-1288.
DOI：

WANG Bu-hong, GUO Ying, WANG Yong-liang. Mutual Coupling Calibration for Conformal Array Antenna with Instrumental Sensors[J]. Acta Electronica Sinica, 2009, 37(6): 1283-1288. DOI：

摘要

针对共形天线载体曲率和单元方向图指向的变化

建立了三维共形天线导向矢量的数学模型;推导了阵列互耦与方位依赖幅相误差的等价关系;通过引入少量远离共形载体的辅助阵元和方向未知的校正信源

提出了共形阵列天线互耦校正的辅助阵元法.辅助阵元法只需要参数的一维搜索和线性方程组求解

可以实现校正信源方位和共形天线互耦系数的联合估计.计算机Monte-Carlo仿真实验验证了辅助阵元法互耦校正的有效性.

Abstract

In view of the variable curvature radius of the platform and different orientations of elements

array manifold model for arbitrary 3D conformal array is established.The equivalence of the array mutual coupling and angularly dependent gain and phase uncertainties is developed.With the help of some carry-on instrumental sensors and some time-disjoint pilot sources in unknown directions

Instrumental Sensors Method(ISM)is proposed for the mutual coupling calibration of conformal array antenna.ISM is able to achieve a favorable mutual coupling auto-calibration just using a one-dimensional search and solution of linear system of equations

with no high-dimensional nonlinear search and convergence burden involved.Simulation results are provided to demonstrate the effectiveness and behavior of the proposed ISM.

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