Abstract
Due to the special geographical and spatial meteorological characteristics in the polar region, we deeply studies the influence of this feature on the quality of GNSS observation data. In this paper, 12 MGEX stations and 2 IGMAS stations are used to test the data quality, such as the number of visible satellites, PDOP value, SNR and multipath delay. BDS-3 is also used for simulation test. The test results show that: (1) the number of GPS satellites in the polar region is significantly more than the number of BDS satellites. The BDS satellite has a large or zero PDOP value at some sites; (2) The SNR of the GPS and GLONASS satellites at the L1 frequency is better than the SNR at the L2 frequency. The SNR of the BDS satellite at the B3 frequency is better than the SNR of the B1 and B2. The SNR of GEO satellites is lower than that of IGSO and MEO satellites. The multipath effect of GEO satellites is obvious, and is greater than IGSO and MEO satellites. (3) The simulation results show that BDS-3 has more satellite numbers, better spatial geometry and better navigation accuracy.
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Yao, X., Chen, M., Wang, J., Chen, R. (2019). Quality Analysis of GNSS Data in Polar Region. In: Sun, J., Yang, C., Yang, Y. (eds) China Satellite Navigation Conference (CSNC) 2019 Proceedings. CSNC 2019. Lecture Notes in Electrical Engineering, vol 563. Springer, Singapore. https://doi.org/10.1007/978-981-13-7759-4_34
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DOI: https://doi.org/10.1007/978-981-13-7759-4_34
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