True azimuth and north finding method and system

Details True azimuth and north finding method and system True azimuth and north finding method and system

2006-07-24

2008-11-11

Barlow, Jr., John E. (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Orientation or position

C702S092000, C702S150000, C702S152000, C702S153000, C342S357490, C342S458000, C342S029000, C340S945000, C340S961000, C340S970000, C340S963000, C340S968000

Reexamination Certificate

active

07451059

ABSTRACT:
A method and a system are recited for obtaining a true azimuth heading for correcting a coarse azimuth heading measured from an observation position to a specific selected target by operating a data acquisition system disposed at the observation position. In principle, data is acquired and measurements are taken to allow calculation of a calculated target, including error area limits. The calculated target surrounded by error area limits is presented as a search zone to an operator for searching, finding and indicating on a display, on which is superimposed at least one map, of the specific selected target. Once found, calculations of the true azimuth are performed, allowing the derivation of the true North. The method and a system are operative with a variety of maps, including digital terrain models and stellar maps.

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