Image: GPS World

About Xu Tang

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Xu Tang is a research fellow at the University of Nottingham, Ningbo, China. He holds a PhD from Nanjing University.

Posts by Xu Tang

Survey accuracy: The future of precision with 5 GNSS constellations Posted on 11 Jan 2019 in the Featured Stories & From the Magazine & Survey categories.

Today’s GNSS satellites transmit on three or more carrier frequencies. The quality of the data in these signals from GPS, BeiDou, Galileo, GLONASS and QZSS reveals the expected measurement precisions.... Read more»