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The ASR-9 was the first airport surveillance radar to detect weather and aircraft with the same beam and be able to display them on the same screen. It has a digital Moving Target Detection (MTD) processor which uses doppler radar and a clutter map giving advanced ability to eliminate ground and weather clutter and track targets.
Like the ASR-11, CARSR is completely solid state. Westinghouse built ARSR-3. ARSR-3 and 3D search radar were used by the FAA in the Joint Surveillance System (JSS). The radar operated in the L-band at 1250 to 1350 MHz and detected targets at distances beyond 210 nautical miles; 390 kilometres (240 mi). The D model had height-finder capability.
Like the ASR-9, the ASR-11 has an on-site, dedicated weather reflectivity processor, with six separate levels of precipitation reflectivity. The limited number of pulses sent out by the radar system has a direct effect on its ability to measure weather conditions. Unlike the ASR-9, the ASR-11 is less suited for wind shear detection, Doppler ...
Asr radar (2013) Asr (Persian: رادار عصر Radar) is an Iranian passive electronically scanned array long-range radar unveiled in 2013. [1] [2] [3] The Air Surveillance Radar or ASR is a 3-D solid state phased array radar, capable of detecting boats, low flying aircraft with a radar cross section (RCS) of 4 m 2 (43 sq ft) at a range of 5–110 nmi (6–127 mi; 9–204 km). [4]
ASR-9 was the first Radar System to enable the detection of a moving target with circular polarization, therefore significantly enhancing the ability to locate aircraft in various weather conditions. In addition to the enhanced detection system, six separate weather channels can be switched on to display the precipitation reflectivity measured ...
AN/FPN-47 Airport Surveillance Radar (ASR) AN/FPQ-16 Perimeter Acquisition Radar at Cavalier AFS, North Dakota (an engineering development model was tested at Syracuse) AN/FPS-3 search radar; AN/FPS-4 Height-Finder; AN/FPS-5 long Range Search Radar; AN/FPS-6 height finder; AN/FPS-7 Long Range Search Radar; AN/FPS-8 Medium Range Search Radar
A new methodology was developed in May 1942, combining an S-band airport surveillance radar (ASR) that brought the aircraft into the general area of the airport, and a second X-band radar, the precision approach radar (PAR), with separate antennas for vertical and horizontal guidance that were moved in such a way to avoid seeing the ground. [2]
Secondary surveillance radar antenna (flat rectangle, top) mounted on an ASR-9 primary airport surveillance radar antenna (curved rectangle, bottom).. The need to be able to identify aircraft more easily and reliably led to another wartime radar development, the Identification Friend or Foe (IFF) system, which had been created as a means of positively identifying friendly aircraft from unknowns.