air surveillance radar


Also found in: Acronyms.

air surveillance radar

[¦er sər¦vā·ləns ¦ra‚där]
(engineering)
Radar of moderate range providing position of aircraft by azimuth and range data without elevation data; used for air-traffic control.

air surveillance radar (ASR)

A radar deployed around the aerodromes that can detect aircraft within 360° and at a range of 60 NM. The radar does not have the resolving power of precision approach radar (PAR) but has a higher range and 360° coverage. The radar can be used for a ground-controlled approach to a limited extent. Since no control of altitude is available and the accuracy of lateral control is less than that of PAR, the airplane must break through any overcast at a higher altitude than in a PAR. The ASR can be used to bring aircraft within one mile of touchdown.
References in periodicals archive ?
The VL MICA system comprises a Tactical Operation Centre (TOC), a 3D air surveillance radar and between three and six launchers (each carrying four missiles) making it easy to deploy.
To obtain high probability of detection even of small targets as long range, air surveillance radars have been equipped with very high pulse power transmitters.
Designed to home in on the transmissions of hostile ground-based air surveillance radars, the Texas Instruments AGM 45A/B family of air-to-surface ARMs received its combat debut courtesy of United States' Navy (USN) McDonnell Douglas A-4A/B/C Skyhawk Multi-Role Combat Aircraft (MRCA) during the United States' involvement in the Vietnam War between 1965 and 1975.
The French Marine National's Cassard air defence frigate is set to be upgraded with a new Thales Smart-S air surveillance radar to replace its legacy Thomson-CSF (now Thales) DRBJ-11B radar, which has become obsolete.
Evaluation of the aircraft's radar low observability could take place in Sweden using a Saab Giraffe air surveillance radar.
Presolicitation: Enterprise air surveillance radar (easr) engineering and manufacturing development contract (emd) with production options
Son of the long range AN/FPS-117 air surveillance radar introduced in the late 1970s for the US Air Force's Alaskan Air Command, the FPS-117 is a much modernised and mobile version developed by Lockheed Martin to meet requirements from Brazil and Australia.
Recently, RADA received a contract to produce and supply a tactical air surveillance radar to a leading European defence contractor.
The funds would be utilized for new air surveillance radar, individual anti-aircraft defense systems and weapons and the development of current air-defense capabilities.
Contract Awarded for Study and demonstration contract for develop an Enterprise Air Surveillance Radar (EASR)