RT Journal Article
SR Electronic
T1 Development of the dual-frequency dual-constellation airborne multipath models
JF NAVIGATION: Journal of the Institute of Navigation
JO NAVIGATION
FD Institute of Navigation
SP 61
OP 81
DO 10.1002/navi.344
VO 67
IS 1
A1 Mihaela-Simona Circiu
A1 Stefano Caizzone
A1 Michael Felux
A1 Christoph Enneking
A1 Markus Rippl
A1 Michael Meurer
YR 2020
UL https://navi.ion.org/content/67/1/61.abstract
AB This paper presents a methodology to build multipath models for aviation use of new Global Positioning System (GPS) and Galileo signals. The estimation of airframe multipath errors makes use of carrier phase measurements; thus, it is affected by the integer ambiguities. A new method for removing the ambiguities from the multipath estimation is presented. The method is suitable for measurements from flight data and is able to exclude measurements highly affected by multipath from the estimation by using a derived standard deviation based on the receiver thermal noise only. Next, an overview of the error sources relevant for the multipath estimation is given, and a first concept to separate the receiver antenna errors from the multipath errors is proposed. Finally, the paper discusses overbounding of the observed multipath errors to safely bound the tail risks and the inflation needed to account for uncertainty due to limited amounts of data.