Research of smoothing pseudo-range algorithm by Doppler based on GPS/BD

Chuanli Kang; Yanliu Zhou

doi:10.1117/12.2200969

9 December 2015 Research of smoothing pseudo-range algorithm by Doppler based on GPS/BD

Chuanli Kang, Yanliu Zhou

Proceedings Volume 9808, International Conference on Intelligent Earth Observing and Applications 2015; 98083K (2015) https://doi.org/10.1117/12.2200969
Event: International Conference on Intelligent Earth Observing and Applications, 2015, Guilin, China

Abstract

GNSS (Global Navigation Satellite System) technology not only in the general field of surveying and mapping, geology, mining, water and electricity, and in particular in the field of public security, fire protection, tourism, search and rescue, adventure have been more widely used. These special areas require real-time and high positioning accuracy. Currently, GNSS precision positioning technology has become a hot research direction. This paper introduced an algorithm of smoothing pseudo range by Doppler based GPS/BD， to improve GNSS positioning precision. This algorithm decoded the pseudo range data and ephemeris data, and then designed algorithm of smoothing pseudo range by Doppler according principle of Doppler smoothing pseudo range. This algorithm was realized by C++ and proved its efficiency. At last, this algorithm has proved its correctness through calculating and analyzing practical Doppler and pseudo range data, and then a conclusion has been obtained: the Doppler value precision is sub-meter, far better than the pseudo-range accuracy, so that if the two data are combined to calculate position that can help to improve the positioning accuracy.

Citation Download Citation

Chuanli Kang and Yanliu Zhou "Research of smoothing pseudo-range algorithm by Doppler based on GPS/BD", Proc. SPIE 9808, International Conference on Intelligent Earth Observing and Applications 2015, 98083K (9 December 2015); https://doi.org/10.1117/12.2200969

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