GEODETIC SURVEYING DEVICE FOR MEASURING SCENES COMPRISING NATURAL AND ARTIFICIAL TARGETS

The invention relates to a geodetic surveying device for measuring cooperative reflecting targets and diffusely reflecting targets. The carrier unit (5) of the surveying device is configured to provide at least three different distance measuring beams, each having a pre-defined beam shape and illuminating a spot area at the target. A first (9) of the three distance measuring beams has a divergence angle smaller than 1 mrad, a second (10) of the three distance measuring beams has a divergence angle within a divergence angle range ranging from 1 to 2 mrad, and a third (11) of the three distance measuring beams has a maximum divergence angle within a divergence angle range ranging from 2 to 15 mrad. The carrier unit is configured to detect returning parts of the third distance measuring beam with an associated maximum receiver field of view lying within a range ranging from 2 to 15 mrad. Thereby, the first distance measuring beam is used to measure diffusely reflecting targets by making a distance to a diffusely reflecting target determinable as a mean distance averaged over the illuminated spot area within the receiver field of view associated with the first distance measuring beam, the second distance measuring beam to measure cooperative reflecting targets, and the third distance measuring beam to measure diffusely reflecting targets by making a distance to a diffusely reflecting target determinable as a mean distance averaged over the illuminated spot area within the maximum receiver field of view associated with the third distance measuring beam.