CURVED APPROACH PROCEDURES ENABLED BY A GROUND BASED AUGMENTATION SYSTEM

Abstract

As the international air traffic increases and becomes more and more complex there is a growing demand for new operational procedures where noise and terrain issues are considered more often. The proceeding integration of satellite navigation into aviation is paving the way for more flexible and complex approach procedures. Operationally, the Required Navigation Performance (RNP) determines the specifications an aircraft has to fulfill to perform a specific procedure. The use of a Ground Based Augmentation System (GBAS) could provide the required accuracy and integrity while loosening the requirements on the aircraft equipment. GBAS is currently being certified as a system providing CAT I capabilities for a precision approach in an ILS “Look-Alike” fashion but in addition the architecture of a GBAS already contains the possibility to provide data for complex procedures, so called Terminal Area Paths (TAP).