Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (11): 3632-3639.doi: 10.12305/j.issn.1001-506X.2023.11.31

• Guidance, Navigation and Control • Previous Articles     Next Articles

Integrated navigation trajectory prediction method based on deep Gaussian process for multiple unknown environments

Luning YANG, Zhenghua LIU, Nuan WEN   

  1. School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China
  • Received:2022-07-07 Online:2023-10-25 Published:2023-10-31
  • Contact: Zhenghua LIU

Abstract:

The traditional inertial navigation and satellite navigation integrated is prone to interfered in complex multi-element and hybrid environment, which affects navigation performance and leads to abnormal observations. We take unmanned ground vehicle as the object and carry out the research on improving the accuracy of the integrated navigation system. A deep Gaussian process (DGP) assisting location estimation method is used to reduce the integrated navigation error and improve the positioning performance. The assisted navigation method based on DGP can not only predict the trajectory of the unmanned vehicle, but also can estimate the probability distribution of the position confidence interval at every time, which provides strict theoretical interpretation for the data fusion prediction method based on deep learning model. Multiple comparison experiments with real historical data show that the proposed framework achieves higher accuracy and reliability than deep neural network algorithms. The DGP-based auxiliary navigation can effectively improve the performance of the navigation model when the global positioning system (GPS) signal is out of lock, and the experiments show that the navigation signal compensation positioning accuracy is improved by 97.32% and 52.13% respectively compared with pure integral navigation system (INS) and long and short term memory (LSTM).

Key words: unmanned ground vehicle, deep Gaussian process (DGP), navigation and location, information fusion

CLC Number: 

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