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In high-speed rocket sled tests where the heading displacement can exceed 300 m, it is common practice to use relay shooting methods to segmentally measure the trajectory of high-speed targets. According to the principle of photogrammetry, each high-speed camera needs to be oriented in the intersection calculation, and multiple control points that meet special requirements need to be set up. However, it is difficult to achieve such a setting requirement on a large-scale rocket sled test area. Based on the characteristics of the rocket sled test, three collinear control points are set on the track. By solving only the three angular elements and lens focal length of the high-speed camera, it can achieve trajectory measurement of high-speed targets with a measurement accuracy better than 0.2 m.

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Camera Orientation and Trajectory Measurement Based on Three Collinear Control Points in High-Speed Test

  • 会议论文

  • 发表日期：

    2025年

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  • Guoxiong Luo,
  • Zengyuan Liu,
  • Weisheng Zhang

摘要

In high-speed rocket sled tests where the heading displacement can exceed 300 m, it is common practice to use relay shooting methods to segmentally measure the trajectory of high-speed targets. According to the principle of photogrammetry, each high-speed camera needs to be oriented in the intersection calculation, and multiple control points that meet special requirements need to be set up. However, it is difficult to achieve such a setting requirement on a large-scale rocket sled test area. Based on the characteristics of the rocket sled test, three collinear control points are set on the track. By solving only the three angular elements and lens focal length of the high-speed camera, it can achieve trajectory measurement of high-speed targets with a measurement accuracy better than 0.2 m.