Position reference system and method for positioning and tracking one or more objects

Position reference system and method for positioning and tracking one or more objects which in addition to range and azimuth also provides the elevation angle of the target relative to the instrument axes of the sensor platform. The system and method is based on a near IR laser radar transceiver and...

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Bibliographische Detailangaben
Hauptverfasser:	Rosshaug Harald Fossum, Klepsvik John O, Ueland Gard Flemming
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES GYROSCOPIC INSTRUMENTS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SURVEYING TESTING
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Beschreibung
Zusammenfassung:	Position reference system and method for positioning and tracking one or more objects which in addition to range and azimuth also provides the elevation angle of the target relative to the instrument axes of the sensor platform. The system and method is based on a near IR laser radar transceiver and one or more active or passive retroreflectors placed on the objects to be positioned. The present invention further includes an internal beam stabilization mechanism protected from the environment and utilize a cylindrical window which is transparent for the near IR laser radiation, but absorbs all visible and UV radiation and thus protects the optical parts from ambient solar radiation. In addition, the cylindrical window protects all internal mechanical parts, notably the rotating and moving parts, from a corrosive and freezing/icing environment.