New in TA 2022: Horizontal offsets with Tilt compensation
Автор: Michael Karavanov
Загружено: 2022-06-01
Просмотров: 198
Horizontal tilt offset for hard to reach measurements
Reach those hard-to-get measurements without additional equipment. When using a GNSS receiver that has IMU tilt compensation enabled and a properly aligned IMU, you can use the horizontal tilt offset method to measure locations that cannot be occupied by the tip of the pole, for example when measuring the center of a tree or pole.
The horizontal tilt offset method uses IMU tilt compensation to calculate the azimuth of the tilted pole between the Antenna Phase Center (APC) of the GNSS receiver and the pole tip, and then projects the azimuth from the tip at the specified offset distance to compute the offset point.
When measuring, tilt the pole more than 15° and then sight down the pole so that the center of the receiver, the pole, the pole tip, and the offset point being measured (such as the center of the tree) are in a straight line (on the same azimuth). The azimuth at the time of point storage is the azimuth used for the offset.
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