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Brisbane, Australia | Hi Dave, "on the surface" is a thoughtful comment. To be honest, I didn't investigate any underlying theoretical issues that may arise at various distances between the base and the rover and wasn't all the concerned at the time because what we trialed worked so magnificently. I figured - same sky - same satellites - same basic location on the surface of the earth. If there were going to be differences, how minor or major could they be? I'm a practical person and just couldn't see why if the elevation at a stationary rover changed a certain amount at 200 yards from the base, then why not change the base height that same amount to bring the rover elevation back to where it was supposed to be....... why make it more complex and expensive?
For me it was a tool to resolve the frustrations of tractor operators trying to use our TOOMEY buckets for high speed 3/D GPS grading when the height of the GPS is constantly changing and you are constantly traveling at 8-10 miles per hour. A lot of time is wasted going back over passes already supposed to be finished. | |
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Elevation Compensation System for GPS Leveling
