Sensis Multilateration System Expanded at Memphis to Include Terminal Area

DEWITT, NY - November 1, 2001 - Sensis Corporation received a contract from TASC to expand the existing advanced air and surface surveillance system at Memphis International Airport, Tennessee to include terminal area surveillance. The system currently tracks all transponder equipped aircraft and vehicles on the airport surface providing aircraft identification (tags) on displays. The system will be expanded to coverage out to ranges comparable to Airport Surveillance Radar (ASR-9).

The system locates and identifies targets by utilizing small sensors on the ground that listen for transponder signals and triangulate them to determine the position of the signal's source. The transponder signals are also encoded with aircraft data which the sensors decode and provide to air traffic controllers. Traditional transponders typically provide aircraft identification and altitude information. Advanced Automatic Dependent Surveillance Broadcast (ADS-B) transponders also broadcast latitude, longitude, velocity and heading information - as determined by the on-board avionics and the Global Navigation Satellite System.

The system will support the FAA Safe Flight 21 Program and Cargo Airlines Association (CAA) evaluation and demonstration of new and emerging technologies. The Department of Transportation's Volpe National Transportation Center, Cambridge, MA will conduct an independent examination of the system. Memphis International Airport is a primary hub for Federal Express and Northwest Airlines and will host the FAA, CAA and industry OpEval 3 in spring 2002.

Sensis Corporation provides sensors and information technology to the world's militaries, civil aviation authorities, airports and airlines. The company designs, manufactures and installs multilateration/ADS-B ground stations for air and surface surveillance, and sensor data interface equipment for integrating new and legacy, surveillance and automation systems. Sensis equipment is deployed around the world, including more than 80 multilateration/ADS-B sensors and 700 sensor data integration devices in 25 countries on 5 continents.