PRESSURE ALTITUDE STABILIZATION

摘要

A method and apparatus is provided for determining the altitude of an aircraft. In accordance with the method, Global Positioning Satellite (GPS) data is received from a plurality of GPS satellites and a GPS altitude value is determined from the GPS data. In addition, a pressure altitude value is determined. An altitude difference is determined between the GPS altitude value and the pressure altitude value. At least one of the GPS altitude value and the pressure altitude value is adjusted using the altitude difference.