System and method for aligning multiple sighting devices

摘要

A system of independently oriented sighting devices includes a first sighting device ( 120 ) and a second sighting device ( 110 ). Upon aligning a line of sight of the first sighting device ( 12 ) with a target object ( 130 ), the first sighting device transmits a reference signal over a communications link ( 140 ). The second sighting device ( 110 ) determines its orientation in space relative to the orientation of the first sighting device ( 120 ) from characteristics of the reference signal. Thus, absolute coordinates of the target object ( 130 ) need not be known by the second sighting device ( 110 ) nor is it required that they be transmitted by the first sighting device ( 120 ). The user ( 115 ) of the second sighting device is directed to rotate the second sighting device ( 110 ) towards the target object ( 130 ) via feedback through guidance indicators located in a viewing port ( 250 ) thereof.