Positioning with Single and Dual Frequency Smartphones Running Android 7 or Later - (PPT)

摘要

Galileo tracking is very much improved on Xiaomi Mi 8: 90% of the codes are Not ambiguous. For both SF and DF smartphones, Code Pseudorange precision is better for Beidou and Galileo than for GPS and GLONASS. Xiaomi Mi 8 L1 code precision is about 2 times better than Samsung Galaxy S8 and Huawei Mate 9. Xiaomi Mi 8 L5/E5a codes reach a precision of about 20 cm for CNo>37.5 dB Hz but it is still very susceptible to multipath. Carrier phase-based static differential positioning using GPS and Galileo (L1/E1+L5/E5a) on a very short baseline provides cm-level precision in horizontal component and decimetre-level in vertical component.