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Rapid and Precise GLONASS GDOP Approximation using Neural Networks

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Abstract

Russian global navigation satellite system (GLONASS) provides civilian and military users three-dimensional position determination and navigation services as same as US global positioning system. Geometric dilution of precision (GDOP) provides a simple interpretation of positioning precision. Usual method for GLONASS GDOP calculation is matrix inversion. However this process imposes a huge calculation load on receiver, especially when large number of visible satellites exists. To overcome this problem, artificial neural network is used. Different configurations and training methods are simulated on a data base obtained by a GLONASS receiver. Then navigation precision and execution times are explored and compared. Results show that recurrent neural network has 0.00024 RMS error, which is the best against other focused tools including feed forward back propagation and radial basis function neural network with usual training and with genetic algorithm adopted weights and biases.

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Authors and Affiliations

  1. Department of Electrical Engineering, Iran University of Science and Technology, 16846-13114 , Narmak, Tehran, Iran

    Amir Tabatabaei & Mohammad Reza Mosavi

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  1. Amir Tabatabaei
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  2. Mohammad Reza Mosavi
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Correspondence to Mohammad Reza Mosavi.

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Tabatabaei, A., Mosavi, M.R. Rapid and Precise GLONASS GDOP Approximation using Neural Networks. Wireless Pers Commun 77, 2675–2685 (2014). https://doi.org/10.1007/s11277-014-1660-z

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  • DOI: https://doi.org/10.1007/s11277-014-1660-z

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