Integrated NAV-COM Systems: Assisted Code Acquisition and Interference Mitigation

In this paper, the problem of code acquisition for global navigation satellite systems (GNSS) is investigated in the presence of interference. A low-complexity interference mitigation technique is proposed to combat the effect of interference, which offers the potential for improved performance espe...

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Bibliographic Details
Published in:IEEE systems journal 2008-03, Vol.2 (1), p.48-61
Main Authors: Palestini, C., Pedone, R., Villanti, M., Corazza, G.E.
Format: Article
Language:English
Subjects:
Acquisitions
Assisted navigation
Broadcasting
code acquisition
Communications networks
digital notch filtering
Frequency estimation
Frequency synchronization
Global navigation satellite system
Global Positioning System
GNSS
Interference
interference mitigation
Jamming
Marketing
Networks
Performance enhancement
Power system management
Quality management
Quality of service
Satellite navigation systems
Terminals
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Summary:In this paper, the problem of code acquisition for global navigation satellite systems (GNSS) is investigated in the presence of interference. A low-complexity interference mitigation technique is proposed to combat the effect of interference, which offers the potential for improved performance especially when high power jammers affect the reception. For practical implementation, an integrated navigation-communication network architecture is proposed, composed by an assistance network to aid code synchronization and an interference management system, augmenting the GNSS local component to enhance the system quality of service. Accordingly, an overall assistance network is proposed to estimate the interference characteristics and broadcast them to conventional terminals along with a rough time and frequency reference to improve code acquisition performance. Analytical and simulated results are provided, in the presence of binary offset carrier (BOC) modulation, showing the clear potential of assistance GNSS to significantly improve performance and reduce terminal complexity at the same time.
ISSN:1932-8184
1937-9234
DOI:10.1109/JSYST.2007.914866