Broadband GPS Data Capture for Signal and Interference Analysis

Alison Brown, Jarrett Redd, and Phillip A. Burns

Abstract:	There is growing concern regarding the ability of GPS receivers to operate in the presence of in-band or near-band interference. In-band interference can occur deliberately from GPS jammers or naturally from spurious harmonics from nearby electronics that generate signal products that land in the GPS signal band. To support development and testing of GPS receivers in an interference environment, NAVSYS has developed a broadband GPS signal simulator product which includes the capability to either record live satellite signals during testing or generate simulated signals using the NAVSYS GPS Signal Architect software, and play these files back to generate simulated GPS RF signals for receivers under test. This product allows for broadband capture of the full GPS spectrum and also recording of interference environments. In this paper, we describe how this GPS signal simulator product will also allow during playback for a user to insert interference signals into recorded or simulated GPS signals in a non-jammed environment for testing of a GPS receiver in a simulated interference environment.
Published in:	Proceedings of the 25th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2012) September 17 - 21, 2012 Nashville Convention Center, Nashville, Tennessee Nashville, TN
Pages:	136 - 140
Cite this article:	Brown, Alison, Redd, Jarrett, Burns, Phillip A., "Broadband GPS Data Capture for Signal and Interference Analysis," Proceedings of the 25th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2012), Nashville, TN, September 2012, pp. 136-140.
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