Thales UK, NATS and Roke Manor Research will examine a new system known as multi-static primary surveillance radar (MSPSR), which uses existing digital TV signals to support air traffic management (ATM).
The two-year study is being funded by the UK’s Technology Strategy Board and will include development of a prototype system to investigate potential ATM applications and benefits.
This pioneering type of radar has been made possible by the increased power and reduced cost of processor technology. It incorporates a number of ground stations that receive the same TV signal, except that each receives the signal at a slightly different time because of the reflections and interactions with aircraft flying in their vicinity. The received signals are then compared to the original broadcast, and the difference is used to triangulate the position of the aircraft.
Announcing the funding award, Thales UK said in a statement: “The large number of TV transmitters already located across the UK could provide a more reliable infrastructure than the current system, which typically relies on one radar per airport. The continued availability of transmissions is safeguarded because the digital TV network is part of the UK’s critical national infrastructure, although the study will also examine how service level agreements with broadcasters could further ensure reliability and performance.”
Using existing digital TV broadcasts could mean that dedicated transmitters were no longer needed, which could simplify the system, lower the power consumption, and reduce the financial commitment of maintaining the ATM infrastructure.
It would also free up coveted ATM radio spectrum for wireless communications and other requirements. MSPSR is also less vulnerable to interference from wind turbines, which would further enhance safety.
Thales UK’s aerospace business head Marion Broughton said: “The funding that we have secured today from the Technology Strategy Board is a significant endorsement of the potential long-term benefits of this research. Although in its infancy, this innovative application of new technology could reshape the way that air traffic is managed in the future.”
atwonline.com
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