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Related Experiment Videos

GPS-aided method for platform attitude determination based on target images.

Teng Xu, Lijun Xu, Xiangrui Tian

    Applied Optics
    |April 5, 2017
    PubMed
    Summary
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    This study introduces a low-cost GPS-aided method using target images to measure platform attitude angles, improving laser scanning accuracy. The new approach achieves measurement accuracy better than 0.05° Root Mean Square Error (RMSE).

    Area of Science:

    • Geomatics Engineering
    • Robotics
    • Computer Vision

    Background:

    • Attitude measurement errors significantly impact laser scanning imaging accuracy.
    • High-accuracy Inertial Navigation Systems (INS) are prohibitively expensive for many applications.

    Purpose of the Study:

    • To propose a cost-effective GPS-aided method for measuring platform attitude angles using target images.
    • To enhance the imaging accuracy of laser scanning systems by addressing attitude measurement errors.

    Main Methods:

    • Developed a GPS-aided technique to derive platform attitude changes from displacements in adjacent target images.
    • Conducted outdoor experiments to compare the proposed method against a high-cost GPS/INS system.

    Main Results:

    Related Experiment Videos

    • The proposed method demonstrated a measurement accuracy for platform attitude angles better than 0.05° Root Mean Square Error (RMSE).
    • Preliminary results indicate the effectiveness of the low-cost approach in improving attitude measurement.

    Conclusions:

    • The proposed GPS-aided method offers a viable and accurate solution for platform attitude measurement.
    • This technique provides a cost-effective alternative to expensive INS for applications requiring precise laser scanning.