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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. The ground antenna sweeps a narrow vertical beam of microwaves around the airspace.
Conical scanning concept. The radar beam is rotated in a small circle around the "boresight" axis, which is pointed at the target. Conical scanning is a system used in early radar units to improve their accuracy, as well as making it easier to steer the antenna properly to point at a target. Conical scanning is similar in concept to the earlier ...
Positron emission tomography ( PET) [ 1] is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, regional chemical composition, and absorption. Different tracers are used for various imaging ...
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Swimming: 4.5 km/h (2.80 mph) The Bronco All Terrain Tracked Carrier ( ATTC) is a twin chassis multi-purpose tracked articulated vehicle jointly developed by ST Kinetics and the Defence Science and Technology Agency (DSTA) for the Singapore Army. A variant of the Bronco in British service in Afghanistan was named Warthog .
That is, bar-code systems are separate from Electronic Product Code (EPC) systems and GPS systems are separate from active real time locating systems or RTLS. For example, a passive RFID system would be used in a warehouse to scan the boxes as they are loaded on a truck - then the truck itself is tracked on a different system using GPS with its ...
The Bay of Bengal Cooperative Air Traffic Flow Management System ( BOBCAT) is the air traffic flow management (ATFM) of Asia. The CFMU (Central Flow Management Unit) was launched in 2007 by the International Civil Aviation Organization (ICAO) and Aeronautical Radio of Thailand, Ltd (AEROTHAI). BOBCAT is a secure web-based air traffic flow ...
Track while scan. Track-while-scan ( TWS) is a mode of radar operation in which the radar allocates part of its power to tracking a target or targets (up to forty with modern radar) while part of its power is allocated to scanning. It is similar to but functions differently in comparison to its counterparts range-while-search (RWS), long range ...