Implementation of the Global Aeronautical Distress and Safety System (GADSS)
In this paper is introduced the first proposal for development of Global Aeronautical Distress and Safety System (GADSS) in 1999 by the author of this article. The GADSS is de facto the integration of space (radio and satellite) Communication, Navigation and Surveillance (CNS) with Tracking, Detecting and Search and Rescue (SAR) systems, which have to provide airmen with global communications and locating networks. The GPS, GLONASS and other Global Navigation Satellite Systems (GNSS) provide precise positioning data for vessels, land vehicles and aircraft, but modern CNS demands need for enhanced services and augmentation of GNSS networks. Both networks have to be integrated under an GADSS umbrella with elements capable of being operated by any individual onboard aircraft to ensure prompt distress alert for SAR procedure. The enhanced concept of GADSS is that SAR authorities ashore and ships in the immediate vicinity of the aircraft in distress have to be rapidly alerted via radio and satellite communication systems and to assist in a coordinated SAR operations with the minimum of delay. In 2016, 16 years in delay, the International Civil Aviation Organization (ICAO) has begun its process to amend international standards and recommended practices to align with GADSS concept. This paper will also introduce the necessary networks and equipment, which has to ensure harmonized and enhanced maritime and aeronautical global SAR systems.
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