Commercial Aviation Navigation Systems Analysis Toolset

Ian Longstaff, Gengsheng Zhang, Alexander J. Brown

Abstract:	NAVSYS Corporation has developed a set of Commercial Aviation Navigation Systems (CANS) tools that allow post- flight analysis of various reference aids and systems used in be used to compare any new navigation or landing aid to existing systems. This toolset provides a cost-effective method of integration, validation and verification of new systems. They were developed using the flexible open architecture of the MATLAB programming environment. These tools allow the on-board GPS, Differential GPS, VOR/DME, and Inertial Navigation systems performance to be compared and analyzed for an aircraft enroute scenario, against each other, against a GPS base station, airborne rover station, post-processed “Truth” solution, and against the performance of other on-board systems, such as the Flight Management System (FMS) and the Automatic Dependent Surveillance (ADS). The approach segment of a flight can also be analyzed with the CANS software suite. In this flight segment, the on-board GPS and Differential compared to a base station Differential GPS rover station “Truth” solution. The suite can also compare the differential corrections from different base stations and determine the accuracy levels of the differential corrections for a particular time slice. aids and analysis of its performance against these aids, and thus qualify Differential GPS systems for civil aviation use. This software suite has been used by an avionics manufacturer to evaluate a differential GPS navigation and landing approach system developed by them for civil aviation. This paper discusses the analysis capability of the NAVSYS CANS software and relative performance characteristics of the different commercial navigation and landing approach systems analyzed by NAVSYS. aircraft en-route navigation and landing approaches. These tools were developed to provide qualification capability for civil aviation navigation and landing systems, and they can GPS performance can be analyzed and compared to Radar and Instrument Landing System (ILS) approach data and This toolbox allows evaluation of Differential GPS against conventional accepted civil aviation navigation and landing.
Published in:	Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997) September 16 - 19, 1997 Kansas City, MO
Pages:	1029 - 1034
Cite this article:	Longstaff, Ian, Zhang, Gengsheng, Brown, Alexander J., "Commercial Aviation Navigation Systems Analysis Toolset," Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997), Kansas City, MO, September 1997, pp. 1029-1034.
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