A radar tracker is a component of a radar system that aggregates individual radar observations into tracks. It is particularly useful when the radar system is reporting data from several different targets. A tracker operates by comparing the incoming data from the radar sensor with earlier data and determining which new observations are consistent with existing tracks. A typical tracker employs a Kalman filter or a similar device to make the comparison. Depending on the particular data produced by the sensor, the tracker may use a sequence of the target's reported locations to deduce the target's course and speed, or it may use the reported course and speed to aid in tracking. This long range radar antenna, known as ALTAIR, is used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on the Kwajalein atoll. Radar is a system that uses radio waves to detect, determine the distance of, and map, objects such... The word track can have different meanings: a railroad track: see rail tracks a trail, informal road or pathway a copper trace or line on a PCB a distinct section (mostly on song) of a sound recording, such as a gramophone record, compact disc, audio cassette and other recording media. ... Targets (1968) is a film written, produced and directed by Peter Bogdanovich. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... The Kalman filter is an efficient recursive filter which estimates the state of a dynamic system from a series of incomplete and noisy measurements. ...
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