Overlay Video Display of Target Position Utilizing GPS, Compass, and Rangefinder Data

摘要

The object of this system is to display on a monitor, the location coordinates (latitude, longitude and heading) of a selected target viewed through a video camera. The bearing and slant angle (tilt) from the camera to the target is measured with a three-axis electronic compass. The slant range (distance) to the target is measured with a manual laser rangefinder. Calculation of the delta latitude and delta longitude from the camera position provides the location of the target. A character overlay superimposes the target location data on the video camera output to a video monitor.