ORIGINAL ARTICLE Short and zero baseline analysis of GPS L1 C/A, L5Q, GIOVE E1B, and E5aQ

The Author(s) 2011. This article is published with open access at Springerlink.com Abstract Stochastic properties of GNSS range measure-ments can accurately be estimated using a geometry-free short and zero baseline analysis method. This method is now applied to dual-frequency measurements from a new field campaign. Results are presented for the new GPS L5Q and GIOVE E5aQ wideband signals, in addition to the GPS L1 C/A and GIOVE E1B signals. As expected, the results clearly show the high precision of the new signals, but they also show, rather unexpectedly, significant, slowly chang-ing variations in the pseudorange code measurements that are probably a result of strong multipath interference on the data. Carrier phase measurement noise is assessed on both frequencies, and finally successful mixed GPS-GIOVE double difference ambiguity resolution is demonstrated