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QZS-1 Yaw Attitude Estimation Based on Measurements from the CONGO Network

机译:基于CONGO网络测量的QZS-1偏航姿态估计

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摘要

The first satellite of Japan's Quasi-Zenith Satellite System transmits CIA code and the SAIF signal from different antennas. The baseline vector between these antennas can be computed from differential measurements if the satellite's attitude is known. Based on this vector, the yaw attitude of the spacecraft can be computed. This feature is interesting since the yaw attitude of QZSS satellites is switched between two modes and can be non-nominal during certain time periods. Precise knowledge of the satellite's attitude is essential when processing carrier-phase measurements or satellite laser ranging measurements. This paper introduces the algorithm for baseline vector and yaw attitude estimation and presents results based on real measurements of the CONGO network. The observability of the baseline vector and the accuracy of the yaw angle estimates are discussed. The analysis shows a switch from yaw-steering to orbit-normal orientation and changes of the attitude during an orbit maneuver.
机译:日本准天顶卫星系统的第一颗卫星从不同的天线发射CIA码和SAIF信号。如果知道卫星的姿态,则可以根据差分测量结果计算出这些天线之间的基线矢量。基于该向量,可以计算出航天器的偏航姿态。此功能很有趣,因为QZSS卫星的偏航姿态在两种模式之间切换,并且在某些时间段内可能是非标称的。在处理载波相位测量或卫星激光测距测量时,准确了解卫星的姿态至关重要。本文介绍了用于基线矢量和偏航姿态估计的算法,并基于CONGO网络的实际测量结果给出了结果。讨论了基线向量的可观察性和偏航角估计的准确性。分析表明,从偏航转向向正常轨道方向转变,并且在轨道操纵期间姿态发生了变化。

著录项

  • 来源
    《Navigation》 |2012年第3期|p.237-248|共12页
  • 作者

    A. HAUSCHILD;

  • 作者单位

    German Aerospace Center (DLR), Germany P. STEIGENBERGER and C. RODRIGUEZ-SOLANO Technische Universitat Munchen (TUM), Germany;

  • 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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