Sensis Develops ADS-B Protocol Enhancements

Sensis Corporation says it has developed ADS-B (automatic dependent surveillance) protocol enhancements that include sender identity authentication, data encryption and greater capacity.

Additionally, Sensis has developed a modified ADS-B which enables the exchange of turbulence and weather data between aircraft and from aircraft to the ground. The company believes these modifications may be suitable to serve as an "ADS-X datalink," that could be used in future 4D trajectory negotiations.  (See recent activities in Sweden, for example.)

ADS-B reports an equipped-aircraft's position, velocity, identification, capability and intentions to air traffic controllers and other aircraft.

Marc Viggiano, the president of Sensis Air Traffic Systems, says that Sensis "pioneered the development and implementation of ADS-B," when it fielded the first operational ADS-B transceivers for both the Mode S ("select" secondary surveillance radar) 1090 MHz ES (extended squitter), and UAT (universal access transceiver) datalinks. Now, Mr. Viggiano says, Sensis is working to more fully realize the benefits of ADS-B, such as a gate-to-gate surveillance system.  02-22-2006.

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