基于视觉测量的舰载机空间定位方法

Spatial positioning method based on visual measurement for carrier-based aircraft

  • 摘要:
      目的  航母舰载机在起飞前需获得其在甲板的空间位置,视觉测量正是一种高精度、高效率的自动化测量手段。为此,
      方法  提出一种基于视觉测量的舰载机空间定位方案。首先,介绍“视觉测量系统—甲板平面”相对位置标定方法;然后,基于“视觉测量相机—成像中心—机身合作标识”的共线关系,解算出合作标识相对于视觉测量系统的相对位置;最后,在此基础上以机身固定合作标识为位姿传递中继,获得非通视环境“视觉测量系统—机载惯导”传递测量模型。
      结果  视觉测量实验结果显示,基于视觉测量的目标空间定位结果优于0.3 m。
      结论  该方案有望使多架次舰载机在准备起飞前,获得较高精度的空间定位信息。

     

    Abstract:
      Objectives  The spatial position of carrier-based aircraft on the deck is required before take-off. Visual measurement is a high-precision and high-efficiency automated measurement method.
      Methods  Therefore, a spatial positioning scheme for the carrier-based aircraft based on visual measurement is proposed in this paper. Firstly, the "Visual Measurement System-Deck Plane" relative position calibration method is introduced; secondly, based on the collinear relationship of "Visual Measurement Camera-Imaging Center-Fuselage Cooperation Logo", the position of the cooperation logo relative to the visual measurement system is calculated; finally, on this basis, the fuselage fixed cooperation logo is identified as a position transfer relay station to obtain the non-visual environment "Visual Measurement System-Airborne Inertial Navigation" transfer measurement model.
      Results  The results of the visual measurement experiments show that the target spatial positioning result based on visual measurement is better than 0.3 m.
      Conclusion  This scheme is expected to enable more carrier-based aircraft sorties to obtain spatial positioning information with higher precision before take-off.

     

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