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Experimental multi-FPGA GNSS receiver platform

: Garzia, F.; Rügamer, A.; Koch, R.; Neumaier, P.; Serezhkina, E.; Overbeck, M.; Rohmer, G.


TU München; Deutsche Forschungsgemeinschaft -DFG-, Bonn; Institute of Electrical and Electronics Engineers -IEEE-:
24th International Conference on Field Programmable Logic and Applications, FPL 2014 : Munich, Germany, 2 - 4 September 2014; Conference digest
Piscataway, NJ: IEEE, 2014
ISBN: 9783000446450
ISBN: 978-1-4799-3362-4
International Conference on Field Programmable Logic and Applications (FPL) <24, 2014, Munich>
Fraunhofer IIS ()

This paper describes the system architecture and implementation results of a robust and flexible dual-frequency 2×2 array processing GNSS receiver platform. A digital front-end FPGA pre-processes the incoming raw ADC data and implements interference mitigation methods in time and frequency domain. An optional second FPGA card can be used to realize more sophisticated and computational complex interference mitigation techniques. Finally, the data stream is processed on a baseband FPGA platform with spatial array processing techniques using a software assisted hardware GNSS receiver approach. The interconnection of the FPGAs is realized using gigabit transceivers handling a constant raw data rate of 16.8 Gbit/s.