what is the meaning of ranging
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Answer:
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Explanation:
Ranging
Ranging is a process or method to determine the distance from one location or position to another location or position. Another term for this method is lateration. Further development led to cooperative systems, where both locations are equipped with respective apparatus and thus provide bilateral measuring and to multilateral measurement between a larger set of locations, see multilateration. Members in the class of active ranging systems operate with unilateral transmission and passive reflections, as SONAR, RADAR and LIDAR. Special ranging makes use of actively synchronized transmission and travel time measurements, hence the time difference between several received signals is used to determine exact distances. This principle is used with SatNav, the Satellite Navigation class of systems. In conjunction with a standardized model of the Globe surface a certain location on the Globe may be determined with high accuracy. Ranging methods without accurate time synchronization of the receiver are called pseudorange, used e.g. in GPS positioning
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