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The air traffic control radar beacon system (ATCRBS) is a system used in air traffic control (ATC) to enhance surveillance radar monitoring and separation of air traffic. It consists of a rotating ground antenna and transponders in aircraft.
It is the main air traffic control system for the airspace around airports. At large airports it typically controls traffic within a radius of 60 miles (96 km) of the airport below an elevation of 25,000 feet. The sophisticated systems at large airports consist of two different radar systems, the primary and secondary surveillance radar. [1]
The ASR-9 monitoring system was formally designated by the FAA to be used as a Primary Radar replacement, as well as a live weather condition monitor utilized from the Air Traffic Control tower. ASR-9 was the first Radar System to enable the detection of a moving target with circular polarization, therefore significantly enhancing the ability ...
This system, which became known in civil use as secondary surveillance radar (SSR), or in the US as the air traffic control radar beacon system (ATCRBS), relies on a piece of equipment aboard the aircraft known as a "transponder." The transponder is a radio receiver and transmitter pair which receives on 1030 MHz and transmits on 1090 MHz.
The information from the signal is sent to an Air Traffic Control tower, or a Radar Approach Control (RAPCON) with a digital tag that describes the location, heading, and speed at which the aircraft is moving. The overall operation of the ASR-11 is similar to that of the ASR-9, with relatively few differences between the two radar systems.
STARS replaced the Automated Radar Terminal System (ARTS) at FAA air traffic control facilities across the US, as well as the previous automation systems employed by the DoD. The STARS system receives and processes target reports, weather, and other non-target messages from both terminal and en route digital sensors.
ADS-B: automatic dependent surveillance broadcast; provides a data downlink of various flight parameters to air traffic control systems via the transponder (1090 MHz), and reception of those data by other aircraft in the vicinity. The most important is the aircraft's latitude, longitude and level: such data can be utilised to create a radar ...
The data that ASDE-X uses comes from a surface movement radar located on the airport traffic control tower or remote tower, multilateration sensors, ADS-B (Automatic Dependent Surveillance-Broadcast) sensors, terminal radars, the terminal automation system, and from aircraft transponders. By fusing the data from these sources, ASDE-X is able to ...