Abstract
In this work, efforts are made to develop models of BDS positioning errors due to ionospheric scintillation. Two aspects are specially considered in the modeling work, namely the lose-of-lock on signals and the range errors under scintillation. Analysis with scintillation data from China shows that the possibility of signal loss of lock follows a Weibull Distribution. With this in mind, a method is developed to determine the signal-locking statue based on the scintillation index. The theoretical model on range errors is improved to expand the range of input parameters. Errors arising from scintillation related ionospheric irregularity are also accounted for. Then, BDS positioning performance is analyzed with the constructed models for typical scintillation scenarios with the output of GISM (Global Ionospheric Scintillation Model). The Results show the rationality of the models.
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Acknowledgements
This research was supported by the National Key R&D Program of China (No. 2018YFB0505100).
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Liu, D., Yu, X., Feng, J., Zhen, W. (2020). Modeling of BDS Positioning Errors Due to Ionospheric Scintillation and Its Application. In: Sun, J., Yang, C., Xie, J. (eds) China Satellite Navigation Conference (CSNC) 2020 Proceedings: Volume II. CSNC 2020. Lecture Notes in Electrical Engineering, vol 651. Springer, Singapore. https://doi.org/10.1007/978-981-15-3711-0_1
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