Preliminary analysis of BDS-3 and Galileo compatible interoperable positioning performance
【摘要】：In this paper, using the BDS-3 and Galileo observation data collected by compatible interoperable receivers, the signal-to-noiseratio(SNR), multipath, pseudorange and phase noise, single point positioning performance of B1C, B2a, E1, E5a and BDS-3 SBAS positioning accuracy are compared and analyzed. The results show that the SNR of B1C/B2a are 2-3 dB-Hz higher than E1/E5a. The average of pseudorange multipath of 4 frequenciesare between from 0.4 m to 0.8 m. The pseudorange noises of 4 frequencies are all better than 8 cm and phase noises are better than 0.006 cycle. The interoperable positioning accuracy is improved by 11.5%～59.8% compared to BDS-3 single system. Compared with B1C + B2a dual-frequency positioning, the accuracy of BDS-3 dual-frequency SBAS positioning is improved by 5.6% ～ 15.2%.