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A Novel Method to Measure Array Manifolds of GNSS Adaptive Antennas

机译:一种测量GNSS自适应天线阵列流形的新方法

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摘要

We present a procedure for measuring the complete, in situ array manifold of a STAP-based adaptive antenna using only standard GNSS receiver measurements. Note that one needs in situ array manifolds in adaptive spatial processing as well as for estimation of the antenna induced biases in GNSS measurements. The proposed procedure is a straightforward extension of traditional outdoor GPS antenna calibration methods. The adaptive filter weights in the antenna electronics are carefully varied, and their effect on the GNSS receiver measurements are recorded. Using a system of equations derived in this paper, these receiver measurements are used to solve for the frequency response of each antenna element in each satellite direction. The accuracy of the proposed procedure is established using computer simulations. We also show that the measured array manifolds provide a very good estimate of the antenna induced biases in GNSS receiver measurements in the presence of interferers.
机译:我们提出了一种仅使用标准GNSS接收器测量来测量基于STAP的自适应天线的完整,原位阵列流形的程序。注意,在自适应空间处理中以及在GNSS测量中估计天线引起的偏置时,需要原位阵列流形。所提出的程序是对传统室外GPS天线校准方法的直接扩展。仔细调整天线电子设备中的自适应滤波器权重,并记录其对GNSS接收机测量的影响。使用本文推导的方程式系统,这些接收机测量结果用于求解每个天线方向在每个卫星方向上的频率响应。所提出程序的准确性是通过计算机模拟确定的。我们还表明,在存在干扰源的情况下,测得的阵列歧管可以很好地估计GNSS接收器测量中的天线感应偏置。

著录项

  • 来源
    《Navigation》 |2011年第4期|p.345-356|共12页
  • 作者单位

    The Ohio State University, Columbus, Ohio, 43212;

    The Ohio State University, Columbus, Ohio, 43212;

    The Ohio State University, Columbus, Ohio, 43212;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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