A Static and Dynamic Analysis of the Operational GPS WAAS for Use in Precision and Non-Precision Approaches

John Fagan, Hazem Hejjo, Emmanuel Darne

Abstract:	This paper presents an overview of the initial flight test results in a program to develop new standards and criteria for WAAS (Wide Area Augmentation) GPS terminal instrument procedures. The results presented here are being obtained in an ongoing test program at the University of Oklahoma for the evaluation of non-precision and precision WAAS approaches using a GPS navigation system in category A and B aircraft. The OU program is a coordinated partner program with the category C and D aircraft ongoing and managed by the FAA Technical Center in Atlantic City. This paper will present preliminary University of Oklahoma results of flight tests on the basic “T”, and straight final precision GPS/WAAS approaches, as well as the results of non-precision approaches using the WAAS. The paper will present final results of isoprobability contours based on the data that has been obtained to date. In addition the paper will present of initial pilot reactions to the procedures and the use of the GPS/WAAS Gamma Navigator.
Published in:	Proceedings of the 11th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1998) September 15 - 18, 1998 Nashville, TN
Pages:	167 - 175
Cite this article:	Fagan, John, Hejjo, Hazem, Darne, Emmanuel, "A Static and Dynamic Analysis of the Operational GPS WAAS for Use in Precision and Non-Precision Approaches," Proceedings of the 11th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1998), Nashville, TN, September 1998, pp. 167-175.
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