A Combined GPS/GLONASS High Precision Receiver for Space Applications

Pierluigi Silvestrin, Stuart Riley, Neil Howard, Eric Aardoom, and Peter Daly

Abstract:	The University of Leeds are developing a prototype multichannel combined GPS/GLONASS receiver capable of simultaneously tracking the C/A and P codes, and when anti-spoofing (A-S) is present operating in a codeless mode. The primary application is for earth observation radio occultation measurements on board a low earth orbiting (LEO) satellite. However, the architecture allows for a variety of applications such as earth-based reference stations or spacecraft attitude determination. The channel digital signal processing is presented. Each channel is capable of simultaneous Ll and L2 P code, and Ll C/A code tracking. Details of the firmware are given, including the tracking strategy and filter bandwidths. Finally, initial results showing the code and carrier phase precision are provided.
Published in:	Proceedings of the 8th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1995) September 12 - 15, 1995 Palm Springs, CA
Pages:	835 - 844
Cite this article:	Silvestrin, Pierluigi, Riley, Stuart, Howard, Neil, Aardoom, Eric, Daly, Peter, "A Combined GPS/GLONASS High Precision Receiver for Space Applications," Proceedings of the 8th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1995), Palm Springs, CA, September 1995, pp. 835-844.
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