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 firm’s 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.