Phase-derived close-range navigation and attitude-sensing /

An electronic aid that could substitute for perspective vision under adverse weather conditions would provide a major safety improvement in aircraft guidance for landing. To develop such a system, phase-derived techniques for locating the angular and radial position of microwave beacon transmitters have been investigated. Position parameters are derived from phase measurements by individual and interferometric receivers, both stationary and in motion. The error sensitivity of the various techniques is evaluated for a geometry typical of a landing aircraft. (Author)."Microwave Physics Laboratory Project 8682.""ADA020294 (from http://www.dtic.mil).""22 September 1975."Includes bibliographical references (page 39).An electronic aid that could substitute for perspective vision under adverse weather conditions would provide a major safety improvement in aircraft guidance for landing. To develop such a system, phase-derived techniques for locating the angular and radial position of microwave beacon transmitters have been investigated. Position parameters are derived from phase measurements by individual and interferometric receivers, both stationary and in motion. The error sensitivity of the various techniques is evaluated for a geometry typical of a landing aircraft. (Author).Mode of access: Internet