Omega Coverage: Analytical and Empirical Methods and Solutions

E. R. Swanson

Abstract:	The most important statement about Omega coverage is that the system is in continuous use by many of the world's airlines to provide a trillion passenger miles of safe and efficient navigation annually on global routes. As the first electronic navigation system deliberately designed with redundancy, Omega is extraord??inarily robust. The problem is selecting which signals to use in given circumstances. Omega signals may interfere with themselves through two methods. A conventional "short path" signal may be contaminated by a counterpart propagating on a "long path" more than half way around the world. Alternatively, several propagation modes may be supported rather than the one required for navigation. Practical guidance on signal usage has been developed using overlays, a parametric formulation, local assessments and a computer program called ACCESS. These analysis have been largely confirmed through regional validations.
Published in:	Proceedings of the 45th Annual Meeting of The Institute of Navigation (1989) June 27 - 29, 1989 Alexandria, VA
Pages:	111 - 117
Cite this article:	Swanson, E. R., "Omega Coverage: Analytical and Empirical Methods and Solutions," Proceedings of the 45th Annual Meeting of The Institute of Navigation (1989), Alexandria, VA, June 1989, pp. 111-117.
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