COLOGNE, Germany (BulgarianMilitary.com) — The German Air Force and the global pioneer of technology and innovation in the area of defence and security electronics Hensoldt intend to deploy and test a new sensing technology in southern Germany, which is developed to target enemy aircraft without pilots knowing they are being tracked, learned Bulgarian Military.com
The TwInvis passive radar system of the company was unveiled for the first time at the Berlin Air Show in April 2018, where it was reported that it was a technology capable of detecting stealthy aircraft like the F-35.
A service spokesman explained that the test in early November is part of what the German Air Force considers a “measuring campaign” to evaluate the technology. The Air Force expects to take place in the event with aircraft and personnel.
Passive radar systems use commercial airwaves to monitor a given airspace. In a nutshell, the sensors can compute the positions of objects in the air only through their reflections in the overall noise of broadcast signals over populated areas.
The system cannot be detected by anti-radar weapons due to the lack of a dedicated emitter against which reflections are tracked in traditional radar setups. At the same time, a major obstacle for passive radars is that they must have sufficiently strong commercial broadcast activity in the relevant area so that to be able to work at all.
The exact date of the upcoming week-long test is not known yet as company officials declined to announce it. During the test Hensoldt will set up three passive radar receivers in the Munich area and one roughly 70 miles west, near the city of Ulm. The four sensors will allow air traffic tracking in a radius reaching north to Frankfurt in central Germany, but also include parts of Austria and Italy in the south and west, and parts of the Czech Republic in the northeast, according to the company.
Hensoldt passive radar chief Frank Bernhardt commented in an interview, “The sensors will see both the small Cessna at 500 feet, as well as the commercial airliner at 45,000 feet, or any Eurofighter in between.”
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