Characterization of multi-GNSS between-receiver differential code biases using zero and short baselines

Characterization of multi-GNSS between-receiver differential code biases using zero and short baselines

Zhang, B.
Teunissen, P.J.G.

Civil Engineering and Geosciences

Geoscience & Remote Sensing

2015-10-16

Care should be taken to minimize adverse impact of receiver differential code biases (DCBs) on global navigation satellite system (GNSS)-derived ionospheric parameters. It is therefore of importance to ascertain the intrinsic characteristics of receiver DCBs, preferably in the context of new-generation GNSS. In this contribution, we present a method that enables time-wise retrieval of between-receiver DCBs (BR-DCBs) from dual-frequency, code-only measurements collected by a pair of co-located receivers. This method is applicable to the US GPS as well as to a new set of GNSS constellations including the Chinese BeiDou, the European Galileo and the Japanese QZSS. With the use of this method, we determine the multi-GNSS BR-DCB time-wise estimates covering a time period of up to 2 years (January 2013–March 2015) with a 30-s time resolution for five receiver-pairs (four zero and one short baselines). For the BR-DCB time-wise estimates pertaining to an arbitrary receiver-pair and constellation, we demonstrate their promising intraday stability by means of statistical hypothesis testing. We also find that the BeiDou BR-DCB daily weighted average (DWA) estimates show a dependence on satellite type, in particular for receiver-pairs of mixed types. Finally, we demonstrate that long-term variability in BR-DCB DWA estimates can be closely associated with hardware temperature variations inside the receivers.

global navigation satellite system (GNSS)
total electron content (TEC)
between-receiver differential code bias (BR-DCB)
BeiDou code inter-satellite-type-bias (ISTB)

http://resolver.tudelft.nl/uuid:b0d1b7fd-fded-4e7b-89a9-fe069d75973c

Springer

2095-9273

Science Bulletin, 60 (21), 2015

Institutional Repository

journal article

(c) 2015 Science China Press
Springer-Verlag