Abstract
Multisource navigation system consists of GNSS, aerial pseudolite positioning system, and ground pseudolite positioning system. In this paper, the relationship between the elevation, azimuth, and GDOP of multisource navigation system was analyzed, and the error factors of navigation source involved in the multisource navigation system was analyzed; finally, this paper proposed a fast selection algorithm for multisource navigation system. First, the elevation angle of the visible navigation source to the receiver is obtained, and classify them by elevation into low-elevation, medium-elevation and high-elevation areas; second, the azimuth angle of the visible navigation source to the receiver is obtained, and get a set including N (N >7) navigation source based on the fast navigation source selection algorithm; Finally, according to the error factor for each type of navigation source and the erroneous value, combining navigation source selection algorithm-based error, select six group of navigation source from the above set. Simulation shows that multisource navigation system select navigation source using elevation and azimuth with proper calculation, enhancing the positioning solution speed of the receiver.
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Acknowlegment
National Natural Science Fund of the People’s Republic of China (Grant No. 91438207).
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© 2016 Springer Science+Business Media Singapore
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Shi, Z., Gong, Y., Zhou, X., Wang, J. (2016). Navigation Source Selection Algorithm of Multisource Navigation System. In: Sun, J., Liu, J., Fan, S., Wang, F. (eds) China Satellite Navigation Conference (CSNC) 2016 Proceedings: Volume II. Lecture Notes in Electrical Engineering, vol 389. Springer, Singapore. https://doi.org/10.1007/978-981-10-0937-2_45
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DOI: https://doi.org/10.1007/978-981-10-0937-2_45
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Online ISBN: 978-981-10-0937-2
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