Sensis Multilateration System at Stockholm-Arlanda Airport Achieves Site Acceptance in Less than a Year

EAST SYRACUSE, NY – March 3, 2008 – Sensis Corporation’s multilateration surveillance system at Stockholm-Arlanda Airport has passed site acceptance testing by Luftfartsverket Air Navigation Services (LFV) in less than twelve months from when the contract was awarded. The system’s advanced surveillance accuracy and automatic labeling of aircraft and vehicles in the gate and movement areas will increase safety and traffic capacity on the airport surface.

“The Sensis system has achieved SAT on time and as planned,” said Per Kjellander, Project Manager, LFV. “The ‘on schedule’ completion of the system while meeting all performance requirements and the expertise of the installation team validates our decision to select Sensis MDS for Arlanda.”

Sensis’ multilateration surveillance system, Multistatic Dependent Surveillance (MDS), uses multiple low-maintenance, non-rotating sensors to triangulate aircraft positions based on transponder signals. With precision comparable to global positioning systems, a higher update rate than traditional rotating radar, and consistent surveillance performance regardless of weather conditions, Sensis multilateration provides controllers with highly accurate aircraft position and identification information. Additionally, every MDS sensor supports Automatic Dependent Surveillance – Broadcast (ADS-B) for easy migration to future technologies.

“Sensis MDS is designed to allocate system functions between the centralized target processor and the distributed ground stations,” said Tony Lo Brutto, Vice President and General Manager of Sensis Air Traffic Systems. “This balance allows the optimum number of ground stations, reducing cost and complexity. With Arlanda Airport, as with our other deployments, we want to ensure that the system does not contain an excess number of ground stations, which would increase the cost of site acquisition, site preparation, communications and maintenance.”

Sensis’ surveillance technology is the most field-proven in the industry, with systems being used at more than 20 major airports throughout Europe, Asia and Canada as well as 35 of the largest U.S. airports as part of the Airport Surface Detection Equipment, Model X (ASDE-X) program, where Sensis multilateration is a critical component.