Proposed OFDM Modulation for Future Generations of GNSS Signal System

Author:

He Ting,Ma Zherui

Abstract

Modulation design has a significant effect on the accuracy of a navigation system. Two problems exist in current modulations for Global Navigation Satellite Systems (GNSS). One is the extremely low transmission rate of navigation messages. The other is the pseudorange error caused by multipath. To solve the restrictions, a novel GNSS signal system is proposed in this paper. In the new signal system, navigation messages are modulated by Orthogonal Frequency Division Multiplexing (OFDM) modulation for high transmission rate as well as excellent anti-multipath performance and conventional ranging code is still transmitted by Phase Shift Keying-Rectangular (PSK-R) or Binary Offset Carrier (BOC) modulation for precise ranging. Both the signal components supplement each other. Simulation results show that using the proposed GNSS signal system, stable and high transmission quality along with high transmission efficiency for navigation data are achieved. Also, the anti-multipath performance is significantly improved with less computational complexity.

Publisher

Cambridge University Press (CUP)

Subject

Ocean Engineering,Oceanography

Reference19 articles.

1. A Summary of the New GPS IIR-M and IIF Modernization Signals;Holmes;IEEE 60th Vehicular Technology Conference,2004

2. Shahmansoori A. , Montalban R. , Lopez-Salcedo J.A. and Seco-Granados G. (2014). Design of OFDM sequences for joint communications and positioning based on the asymptotic expected CRB. 2014 International Conference on Localization and GNSS, 1–6.

3. Mobile Fading Channels

4. Paonni M. , Mateu I. , Issler J.L. , Eissfeller B. , Ries L. , Boulanger C. , Mulassano P. , Caporale M. , Germaine S. , Guyomard J.Y. , Bastide F. , Godet J. , Hayes D. , Serant D. , Thevenon P. , Julien O. , R. Pratt A. , Rodriguez J.A. , Wallner S. and W. Hein G. (2010). A Search for Spectrum: GNSS Signals in S-Band part2. Inside GNSS, Oct.2010, 46–53.

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