PORTABLE LOCALIZER SITING SYSTEM

摘要

PORTABLE LOCALIZER SITING SYSTEM A portable siting system particularly useful for siting a portable localizer (20) for a collocated approach guidance system for aircraft utilizes a laser range finder (32) in conjunction with a shaft encoder (26) to determine the distance between the localizer (20) and two arbitrary points (54, 58) along a runway center line (62) as well as the azimuth offset between the two points (.THETA.2-.THETA.1). A microprocessor (38) is used to compute the number of degrees (.THETA.6) the antenna (22) of the localizer must be rotated so that its beam intersects the extended runway center line at a predetermined point (18) based on trigonometric computations performed on the two measured distances and the measured angle.