A depiction of the Watson-Watts and Wilkins passive radar experiment that detected a Heyford bomber aircraft at Daventry in 1935. One of the antennas was used to pick up the direct path signal ...

In the late 1970s, Northrop developed the Tacit Blue aircraft to advance U.S. Air Force objectives in stealth and radar ...

NASA’s aerogel-based antenna, by contrast, uses radio waves that can be “electronically steered” to prevent disruptions in ...

In the Russian-occupied Crimea, near the city of Saky, a radar station of the S-400 Triumf anti-aircraft missile system was ...

is an airborne polarimetric Doppler radar operating at W-band (94.94 GHz). Up to 4 antennas are employable and can be configured to observe targets above and below the aircraft. The WCR provides ...

The Japan Ministry of Defense (MoD) has received the first AN/SPY-7(V)1 radar antenna from Lockheed Martin for integration with the Aegis System Equipped Vessel (ASEV). The delivery, facilitated ...

A reference antenna is used to listen ... helicopters from other types of aircraft, and also uses the ADS-B monitoring system as a sanity check. Radar can be used to monitor other vehicles as ...

Those familiar towers, often 40 feet high and topped with 20-by- 10-foot rotating antennas ... radar sweep, a second, high-frequency signal is transmitted along with the primary. When an aircraft ...

reported that it had delivered a new batch of Su-35S fighter aircraft to the VKS). The fighter is said to be equipped with the N035 “Irbis” AFAR (active phased antenna array) radar. The aircraft can ...