The Local Area Augmentation System (LAAS) Ground Facility (LGF) Performance Type 1 (PT 1) specification has been produced to satisfy GPS augmentation requirements for a local area Category I precision approach system. The objective of the paper is to determine where the PT 1 LGF specification would need modification to enable LAAS to also support terminal area navigation. The body of the paper summarizes the results of integrity risk, continuity risk and availability analyses. These analyses are based on the LGF specification of February 2001. However, the results could change due to future specification revisions. The appendices contain supporting analyses. The results indicate that the subject LGF PT 1 specification would require minor change to meet the terminal area navigation requirements.
* This paper is based on system analysis studies performed by the Center for Advanced Aviation System Development (CAASD), of The MITRE Corporation for the FAA Satellite Program Office (AND-730). This paper reflects the views of the author, who is responsible for the accuracy of the facts, analyses and suggestions presented herein, and does not reflect the official views or policy of the FAA.
