Attitude combined measurement method in large-scale obstructed space

HE Lin;MA Guolu;SONG Zijun;ZHAO Yong;ZENG Guoying;RAO Jian

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    Published By: Journal of Applied Optics

    CN 61-1171/O4

Journal of Applied Optics ›› 2022, Vol. 43 ›› Issue (1) : 95-99. DOI: 10.5768/JAO202243.0103004

Attitude combined measurement method in large-scale obstructed space

  • HE Lin1, MA Guolu1, SONG Zijun2, ZHAO Yong2, ZENG Guoying1, RAO Jian1
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Abstract

An attitude measurement method based on multi-sensor combination was proposed to solve the problem of target feature points occlusion due to spatial obstruction in large-scale spatial attitude measurement. The single-coordinate reference measurement of the measured feature point was realized by the digital level and the attitude probe, and the initial attitude of the target was obtained by the level difference of the feature point and its known geometric constraint relationship. On this basis, the attitude rotation matrix between high-precision tilt sensor and measured target was calibrated, and then the target attitude was calculated in real time from the sensor output based on the coordinate transformation theory. The experimental results show that the relative accuracy of attitude measurement is better than 0.001 5° in the range of 10 m, and the repeatability measurement error is less than 0.000 4°, which can be used for the precise real-time measurement of large-scale obstructed spatial attitude.

Key words

large scale / multi-sensor combination / attitude measurement / obstructed space

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HE Lin, MA Guolu, SONG Zijun, ZHAO Yong, ZENG Guoying, RAO Jian. Attitude combined measurement method in large-scale obstructed space. Journal of Applied Optics. 2022, 43(1): 95-99 https://doi.org/10.5768/JAO202243.0103004

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