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The Potential Impact of GNSS/INS Integration on Maritime Navigation

  • Terry Moore (a1), Chris Hill (a1), Andy Norris (a1), Chris Hide (a2), David Park (a2) and Nick Ward (a3)...

Abstract

A version of this paper was presented at ENC-GNSS 2007, Geneva. Its reproduction was kindly authorised by the ENC-GNSS 07 Paper Selection Committee.

The General Lighthouse Authorities of the UK & Ireland commissioned an assessment of the impact that the integration of Global Navigation Satellite Systems (GNSS) with Inertial Navigation Systems (INS) would have on the aids to navigation (AtoN) services currently provided, and those to be provided in the future. There is concern about the vulnerability of GNSS, and the provision of complementary and backup systems is seen to be of great importance. The integration of INS could provide an independent and self-contained navigation system, for a limited time period, invulnerable to external intentional or unintentional interference, or the influences of changes in national policies. The study included an analysis of the potential use of GNSS-INS in three of the four phases of a vessel's voyage: coastal, port approach and docking. The project consisted of a technology assessment, looking at the different inertial technologies that might be suitable for each phase. This was followed by a technology proving stage, evaluating suitable equipment using simulation and field trials to prove that the claimed performance could be achieved in practice. The final stage of the project was to assess the effects of the availability of such systems on existing and planned aids to navigation services.

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[1]Hide, C. D., 2003. Integration of GPS and low cost INS measurements, PhD Thesis, University of Nottingham
[2]Hide, C., Moore, T., 2004. “Performance of GPS and low cost INS integration in marine surveying.” International Hydrographic Review 5((2)): 6476.
[3]IESSG, 2007, Evaluation of integrated GNSS and INS for marine navigation, Final Report for GLA.
[4]Petovello, M. G., 2003, Real-time integration of a Tactical-Grade IMU and GPS for high-accuracy positioning and navigation. PhD Thesis, University of Calgary, UCGE Report 20173, pp 1242.
[5]Salychev, O., Voronov, V., Cannon, M., Nayak, R., Lachapelle, G., January 2000. Low-cost INS/GPS integration: Concepts and testing. Proceeding of the ION National Technical Meeting, Anaheim, 98(105).
[6]Schmidt, G. T., 2003. INS/GPS technology trends, NATO Research and Technology Organisation lecture series 232 Advances in Navigation Sensors and Integration Technology, London, UK, 2021 October 2003

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