An Investigation of Correlator Design Architecture to Support QZSS L1 Signals

P. Mumford, E. Glennon, N. Shivaramaiah

Abstract:	Japan.s first Quasi-Zenith Satellite (QZS-1) "Michibiki" has began transmissions in the last quarter of 2010. This has provided an opportunity across South-East Asia and Australia to investigate live QZSS signals. QZS-1 transmits 6 signals across 4 frequency bands, most of which are compatible with current and modernised GPS signal structures. Michibiki is the first satellite to transmit GPS-like L1C/A, L1C, L2C, L5 and the SBAS signals from a single transmitter. This paper reports on architecture options for a hardware correlator and acquisition schemes that support the acquisition and processing of QZSS signals. Focusing on the QZS-L1C signal in particular, design ideas and trade-offs are investigated along with practical implementation issues on a Field Programmable Gate Array (FPGA) development platform.
Published in:	Proceedings of the 2011 International Technical Meeting of The Institute of Navigation January 24 - 26, 2011 Catamaran Resort Hotel San Diego, CA
Pages:	1143 - 1149
Cite this article:	Mumford, P., Glennon, E., Shivaramaiah, N., "An Investigation of Correlator Design Architecture to Support QZSS L1 Signals," Proceedings of the 2011 International Technical Meeting of The Institute of Navigation, San Diego, CA, January 2011, pp. 1143-1149.
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