Target
Target any object, point, etc., Toward which something is directed. An object which reflects a sufficient amount of a radiated signal to produce an echo signal on detection equipment see radar target, sonar target. The distinctive marking or instrumentation of a ground point to aid in its identification on a photograph in photogrammetry, target designates a material marking so arranged and placed on the ground as to form a distinctive pattern over a geodetic or other control point marker, on a property corner or line, or at the position of an identifying point above an underground facility or feature. A target is also the image pattern on aerial photographs of the actual mark placed on the ground prior to
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