ASIP-eFPGA Architecture for Multioperable GNSS Receivers

  • Authors:
  • Thorsten Sydow;Holger Blume;Götz Kappen;Tobias G. Noll

  • Affiliations:
  • Chair of Electrical Engineering and Computer Systems, RWTH Aachen University, Aachen, Germany 52062;Chair of Electrical Engineering and Computer Systems, RWTH Aachen University, Aachen, Germany 52062;Chair of Electrical Engineering and Computer Systems, RWTH Aachen University, Aachen, Germany 52062;Chair of Electrical Engineering and Computer Systems, RWTH Aachen University, Aachen, Germany 52062

  • Venue:
  • SAMOS '08 Proceedings of the 8th international workshop on Embedded Computer Systems: Architectures, Modeling, and Simulation
  • Year:
  • 2008

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Abstract

In this paper a novel flexible architecture exemplarily applied for multioperable GNSS receivers including an ASIP and an arithmetic oriented embedded FPGA is presented. The advent of next generation GNSS-systems as well as different demands in different system phases require high flexibility. The proposed architecture provides high energy and area efficiency compared to software-programmable processor while preserving flexibility. Exemplarily the mapping of the computational intensive base band processing of a Navstar GPS receiver to an ASIP-eFPGA architecture will be discussed. Results are based on a standard cell based design regarding the ASIP. A design method for physically optimized VLSI-macros has been applied for the implementation of the eFPGA. All results are acquired for a 90 nm-CMOS technology. It will be shown that the proposed heterogeneous architecture features an attractive position in the design space regarding area and energy efficiency as well as flexibility.