GPS L1CA/BDS B1I NLOS Signal Measurements and Modeling in Dense Urban Area

Xin Chen, Yu Jade Morton, Di He

Abstract: GNSS multipath channel modeling is important for signal simulation and error mitigation. Unfortunately, there have not been sufficient studies on channel statistical models for land vehicles in Eastern Asian cities. Therefore, the authors in this paper conducted an extensive on-field data collection in Shanghai-Lujiazui area to construct the channel models for GPS L1CA and BDS B1I signals. In addition, a systematic method is designed to solve the challenge of correctly estimating multipath echo parameters in a dynamic channel environment. The models of the delay, power, Doppler fading frequency, and lifetime for NLOS signals are established in this paper. Furthermore, factors that impact channel models such as satellite elevation and vehicle velocity are analyzed. These NLOS statistical models are developed for the first time to the authors’ knowledge. They will be useful to simulate highly fidelity urban channels for advanced navigation algorithms
Published in: Proceedings of the 2020 International Technical Meeting of The Institute of Navigation
January 21 - 24, 2020
Hyatt Regency Mission Bay
San Diego, California
Pages: 236 - 248
Cite this article: Chen, Xin, Morton, Yu Jade, He, Di, "GPS L1CA/BDS B1I NLOS Signal Measurements and Modeling in Dense Urban Area," Proceedings of the 2020 International Technical Meeting of The Institute of Navigation, San Diego, California, January 2020, pp. 236-248.
https://doi.org/10.33012/2020.17139
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