Swiss forces position air-surveillance equipment in the Alps near Davos, Switzerland, on Jan. 23, 2011, to protect the World Economic Forum. (Kecko) COLOGNE, Germany ― Swiss defense officials say they ...

Traditional sonar and radar use an echo-based approach, and have been amazingly successful in sensing and tracking vehicles and objects under water, through the air, or even in space. The principle is ...

Like most waves in the electromagnetic spectrum, radio waves tend to bounce off of various objects. This can be frustrating to anyone trying to use something like a GMRS or LoRa radio in a dense city, ...

Hensoldt has developed a mobile containerised version of its Twinvis passive radar system which provides long-range military airspace surveillance or, in the medium term, in civil air traffic control.

SAN FRANCISCO – South Australia’s Oculus Observatory, which opened Dec. 9, houses the first in a planned global network of passive radars to track objects in orbit. Located near the River Murray Dark ...

A Tornado fighter aircraft of the German Air Force prepares to land at Büchel air base on Feb. 27, 2019, near Cochem, Germany. (Thomas Lohnes/Getty Images) COLOGNE, Germany — The German Air Force has ...

UNTERSCHLEISSHEIM, Germany, May 13 (UPI) --Airbus Defense and Space is to explore the feasibility of using a radar technology originally developed for the military in civil aviation. The technology is ...

The passive radar landing on Penghu. The Taiwanese military accidentally let slip a secret—and it hints at how Taipei plans to defend against China’s most high-tech warplanes in the event of war ...

Abstract: Traditional active radars transmit a powerful electromagnetic pulse and record the echo's delay time and power to measure target properties of interest, such as range, velocity, and ...

PASSIVE RADAR: Thales’s new Homeland Alerter 100 passive radar is nearing operational status, following its deployment as part of the low- to medium-altitude air defense system assigned to protect ...

It’s not quite that simple. But it is that efficient. The Curtin University node of the International Centre for Radio Astronomy Research (ICRAR) are working with Adelaide’s Silentium Defence to turn ...