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A Novel Fusion Scheme for Vision Aided Inertial Navigation of Aerial Vehicles

Author

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  • Ming Xiao
  • Liang Pan
  • Tianjiang Hu
  • Lincheng Shen

Abstract

Vision-aided inertial navigation is an important and practical mode of integrated navigation for aerial vehicles. In this paper, a novel fusion scheme is proposed and developed by using the information from inertial navigation system (INS) and vision matching subsystem. This scheme is different from the conventional Kalman filter (CKF); CKF treats these two information sources equally even though vision-aided navigation is linked to uncertainty and inaccuracy. Eventually, by concentrating on reliability of vision matching, the fusion scheme of integrated navigation is upgraded. Not only matching positions are used, but also their reliable extents are considered. Moreover, a fusion algorithm is designed and proved to be the optimal as it minimizes the variance in terms of mean square error estimation. Simulations are carried out to validate the effectiveness of this novel navigation fusion scheme. Results show the new fusion scheme outperforms CKF and adaptive Kalman filter (AKF) in vision/INS estimation under given scenarios and specifications.

Suggested Citation

  • Ming Xiao & Liang Pan & Tianjiang Hu & Lincheng Shen, 2013. "A Novel Fusion Scheme for Vision Aided Inertial Navigation of Aerial Vehicles," Mathematical Problems in Engineering, Hindawi, vol. 2013, pages 1-11, October.
    • Handle: RePEc:hin:jnlmpe:819565
    DOI: 10.1155/2013/819565
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