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 SPYDER's C2 system is provided by mPrest, a Rafael subsidiary and is supplemented by an Israel Aerospace Industries (IAI) Elta Systems division EL/M-2016 ATAR air surveillance radar.
As well as obtaining imagery from ground-based air surveillance radars, the JSS can use radar imagery gathered by the USAF's Boeing E-3B/C/G Sentry Airborne Early Warning aircraft and their Northrop Grumman AN/APY-1/2 S-band (2.
Raytheon's AN/SPS-52C 3D long-range, E-band surveillance radar furnishes vessels belonging to the Spanish and Italian navies and the company's AN/SPS-49(V)4 C/D-band air surveillance radar system has been purchased by the US, Canadian and Australian navies for use on aircraft carriers and frigates.
SureTrak is a range surveillance system that integrates and displays tracking data from a wide range of sensors, including surface and air surveillance radar, shipboard radar, global positioning system transponders, environmental monitoring systems, thermal and daylight cameras and closed- circuit television cameras.
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.
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)
18 /PRNewswire/ -- Lockheed Martin received a contract valued at $44 million from the Latvian National Armed Forces for two long-range AN/TPS-77 transportable air surveillance radar systems, as well as options for long-term technical support.
9 /PRNewswire/ -- Lockheed Martin has been contracted by the Royal Thai Air Force (RTAF) to provide a TPS-77 long- range, air surveillance radar, which will complete a multi-phase national air defense system for Thailand.
Further, BAE, Doppler radar specialist Weibel has teamed in chase of the deal as the air surveillance radar and multiple object tracking radar for the facility.
The system provides seamless integration with the MACS Air Surveillance Radar and Operations Subsystems.
The contract, valued at approximately USD 215 million, provides for the updating of electronic warfare systems, command and control systems, electronic countermeasures and air surveillance radar.