Image: GPS World

About Gethin Wyn Roberts

rss feed

Gethin Wyn Roberts is an associate professor at Fróðskaparsetur, the University of the Faroe Islands. He is past Chairman of the FIG’s Commission 6, Engineering Surveys, and previously held posts at the University of Nottingham both in the UK and in China. He holds a Ph.D. in engineering surveying and geodesy from the University of Nottingham.

Posts by Gethin Wyn Roberts

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»