OGSR: A Low Complexity Galileo Software Receiver using Orthogonal Data and Pilot Channels

Albu-Rghaif, Ali and Lami, Ihsan and Al-Aboodi, Maher (2015) OGSR: A Low Complexity Galileo Software Receiver using Orthogonal Data and Pilot Channels. In: Advances in Computing,Communication and Information Technology- CCIT 2015, 26-27 May 2015, Birmingham.

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Abstract

To improve localisation accuracy and multipath rejection, the Galileo-OS signal offers a new modulation with efficient power distribution technique between the two data and pilot navigation components. To achieve the full benefits of this modulation, a robust acquisition and tracking methods must be deployed. For example, using two parallel correlation channels to acquire these data and pilot will gain 3dB over using a single channel acquisition correlating with either one of them. However, dual channel SW receivers cost more processing overheads. In this paper, the authors propose to orthogonalise the received data and pilot signals so to enable their acquisition in a single correlation channel bandpass sampling receiver. Our simulation results, using Simulink, prove that OGSR performance is maintained (preserving the 3dB gain) with less processing time while the implementation complexity is reduced by 50%.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Composite BOC; Galileo Acquisition; Orthogonal-data-pilot
Subjects: Q Science > Q Science (General)
Divisions: School of Science > Applied Computing
Depositing User: Ihsan Lami
Date Deposited: 18 Aug 2015 14:32
Last Modified: 18 Aug 2015 14:32
URI: http://bear.buckingham.ac.uk/id/eprint/60

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