Radars perform double duty as high-speed data links

Synthetic aperture radars have used radio frequency technology to give aircraft, ships and ground troops highly detailed tracking data.

Now, they might provide a way to share that data in real time. Contractors Raytheon and L-3 Communications have combined efforts in a joint development program that might turn synthetic aperture radar systems into nodes on a high-speed, mobile ad hoc network.

Using the radar’s antennas simultaneously for radar sensing and as a high-speed data link, fighter aircraft would be able to transmit full sensor data — previously only available within the aircraft — to other aircraft and ground stations more than 100 miles away.

If successful, the capability that Raytheon and L-3 are developing might transform fighter aircraft and other vehicles equipped with Active Electronically Scanned Array (AESA) radars into powerful intelligence, surveillance and reconnaissance (ISR) platforms, sending synthetic aperture radar images at speeds as fast as 4 gigabits/sec.

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