Saab Sensis has been selected to provide its wide area multilateration (WAM) system for flight surveillance to Republic of Korea Air Force (ROKAF) air traffic controllers.

Conflict detection and alerting capabilities, to provide advanced warning to ROKAF air traffic controllers of an aircraft operating too close to the tower, will feature on the WAM display system being delivered by Saab.

Ken Kaminski, Saab Sensis vice president and general manager, said that the WAM technology provides flexibility to effectively address new surveillance demands with the unique application.

"Additionally, Saab Sensis will leverage its extensive experience in airport surface conflict detection and alerting algorithms and apply it to the Lotte World Tower WAM system," added Kaminski.

"This will enable ROKAF controllers to enhance airspace safety through the industry’s first deployment of conflict detection and alerting built into a WAM surveillance system."

The multilateration offers effective surveillance for increased safety, capacity and efficiency of airspace and surface operations, with high update rate and enhanced positional accuracy compared to the traditional radar.

Using multiple low-maintenance, non-rotating sensors, the WAM will triangulate aircraft location based on transponder signals, while providing precise aircraft position and identification information in all weather conditions.

The sensors feature advanced processing techniques and support automatic dependent surveillance – broadcast (ADS-B) to provide surveillance readiness.

The WAM system provides flight surveillance for the tower within a range of 10 to 15 nautical miles to enhance the safety of the tower.

The system will be deployed near to to the Lotte World Tower, which is currently being constructed near Seoul Air Base in Seoul, Korea.