Performance Analysis of BDS-3/GPS/Galileo Triple-Frequency Ambiguity Resolution Based on Geometry-Free Model
Abstract In this paper, we evaluate the performance of BDS-3/GPS/Galileo triple-frequency carrier ambiguity resolution(TCAR) based on geometry-free(GF) model with raw data. We first present triple-frequency linear combinations that are suitable for the BDS-3/GPS/Galileo TCAR with short baselines. Then we evaluate the performance of BDS-3/GPS/Galileo single-epoch extra-wide lane(EWL), wide lane(WL), and narrow lane(NL) ambiguity resolution with raw data from short baselines of different lengths. Experimental results demonstrate that for the baselines of 5 m, 3.6 km and 13.1 km, the fixing rates of EWL ambiguities for BDS-3/GPS/Galileo are similar(more than 99.7%), and the fixing rates of WL ambiguities for BDS-3/GPS(more than 97.2%) are slightly higher than Galileo(more than 93.0%). The fixing rates for BDS-3 NL ambiguities(more than 92.2%) are slightly higher than GPS/Galileo(more than 89.4%).
Key words :
BDS-3
Galileo
GPS
triple-frequency ambiguity resolution
linear combination
Cite this article:
CHEN Yang,WU Mingkui,LIU Wanke et al. Performance Analysis of BDS-3/GPS/Galileo Triple-Frequency Ambiguity Resolution Based on Geometry-Free Model[J]. jgg, 2022, 42(7): 722-727.
CHEN Yang,WU Mingkui,LIU Wanke et al. Performance Analysis of BDS-3/GPS/Galileo Triple-Frequency Ambiguity Resolution Based on Geometry-Free Model[J]. jgg, 2022, 42(7): 722-727.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2022/V42/I7/722
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