Optics and Precision Engineering, Volume. 30, Issue 4, 455(2022)

Research on attitude measurement technology of free flying model under window distortion correction

Lei CHEN, Yang XU*, Xiaobin XU, Tao ZHU, Xiaoyu MA, Fei XIE, and Chao HE
Author Affiliations
  • Hypervelocity Aerodynamics Institute of China, Aerodynamics Research and Development Center, Mianyang621000,China
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    Figures & Tables(14)
    Theoretical model of binocular vision
    Light path diagram of model attitude measurement system (top view)
    Light source and high speed camera
    Effect of window glass on reconstruction result of the binocular stereo vision measurement system
    Reconstruction results with or without glass
    Offset caused by glass in the images
    Comparison of the image points before and after correction of the left image
    Bias between the correction and the ideal value of the image with glass
    Pointed cone and blunt cone model
    Experiment environment of measurement accuracy of the binocular vision technology
    Model flight process in high-speed camera view
    Model flight process in schlieren camera view
    Free fight model attitude measurement results
    • Table 1. Error of the vision measurement system

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      Table 1. Error of the vision measurement system

      Time

      z/mm

      before correction

      z/mm

      after correction

      β/(°)

      before correction

      β/(°)

      after correction

      referencemeasurementerrorreferencemeasurementerrorreferencemeasurementerrorreferencemeasurementerror
      1-15.10-13.291.811.151.10-0.0512.0510.44-1.619.208.89-0.31
      2-5.05-5.56-0.513.904.020.12-0.50-1.92-1.425.955.75-0.20
      3-0.110.620.736.056.430.38-0.600.110.712.552.720.17
      46.017.000.999.409.25-0.15-9.00-8.310.69-3.10-2.660.44
      512.0011.01-0.9910.279.95-0.32-12.40-11.550.85-12.10-11.950.15
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    Lei CHEN, Yang XU, Xiaobin XU, Tao ZHU, Xiaoyu MA, Fei XIE, Chao HE. Research on attitude measurement technology of free flying model under window distortion correction[J]. Optics and Precision Engineering, 2022, 30(4): 455

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    Paper Information

    Category: Information Sciences

    Received: Jun. 2, 2021

    Accepted: --

    Published Online: Mar. 4, 2022

    The Author Email: Yang XU (mingze0108@126.com)

    DOI:10.37188/OPE.20223004.0455

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