TEKEVER ASDS has been invited to participate in NATO's Industrial Advisory Group (NIAG) studying data generation and broadcast of a Precision Approach Landing System (PALS) based on a Differential Global Navigation Satellite System (DGNSS).
As a result of previous developed work in the expertise field, TEKEVER ASDS will be Portugal's National Focal Point for the execution of the NIAG DGNSS PALS study, aiming to research a PALS, based on DGNSS technology and comprising modular avionics and ground/shipboard components to provide a range of landing minima and system configurations.
DGNSS technology has been developed and deployed worldwide in response to the low resolution of the currently available GPS system. The standard DGNSS technique consists of the determination of the GNSS position from an accurately surveyed position known as reference station. DGNSS accuracy is in the order of 1 m (1 sigma) for users in the range of few tens of kilometres from the reference station, growing at the rate of 1 m per 150 km of separation. The word approach is used to describe the phase of flight that immediately precedes the landing. Based on DGNSS technology, the all-weather landing system to be studied shall remain always operational in a wide range of threat environments, exhibiting performance requirements tailored for a highly mobile force operating in a worldwide space.
TEKEVER ASDS's involvement in the NIAG Study Group DGNSS PALS (NIAG SG175) is scheduled to begin next month, when the Study's kick-off-meeting is scheduled to take place.