GNSS Multi-Frequency Combined Direct Position Estimation in the Urban Canyon Environment

Jihong Huang, Rong Yang, Xingqun Zhan

Abstract: This paper establishes a cross-band (CB) multi-frequency (MF) combined direct position estimation (DPE) architecture to facilitate DPE algorithm in more challenging environments. A virtual reference model is constructed to project the MF signals in a unified reference domain and combine them using peak-to-average power ratio. The code delay differences and independence of the noises among different bands are also considered to guarantee the feasibility of the CB combination. In addition, GPS L1/L5 data collected in urban canyon is utilized in this paper. The positioning performance analysis showed that the MF DPE can significantly improve the single-frequency DPE algorithms. The navigation domain correlation results showed that comparing GPS L1 to L5, the GPS L5 has the better anti-jamming capability with higher code rate.
Published in: Proceedings of the 36th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2023)
September 11 - 15, 2023
Hyatt Regency Denver
Denver, Colorado
Pages: 2920 - 2934
Cite this article: Huang, Jihong, Yang, Rong, Zhan, Xingqun, "GNSS Multi-Frequency Combined Direct Position Estimation in the Urban Canyon Environment," Proceedings of the 36th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2023), Denver, Colorado, September 2023, pp. 2920-2934. https://doi.org/10.33012/2023.19350
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