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used in surveying - much more accurate than a hand compass, but less accurate than GPS survey units. Stereoscope (Abrams Model CB-1 Stereoscope shown)
Using GPS survey units for the quick and accurate recording of point features, McNicholas staff can rapidly download geo-referenced data to be used in a variety of CAD and GIS ...
They also relied on GPS to perform geodetic control surveys, using nine-channel GPS survey units with real-time kinematic radio communications.
36 computer stations; 3 servers; 7 GPS survey units; Professional plotter; Large size scanner; Film scanner; Software. ArcGIS 9.2; Geoda; Crimestat; SAS; SPSS ; Erdas; GPS controller
All aspects of mapping and network analysis work, including input from GPS survey units, have been undertaken by Farrer. The Company serve the water and wastewater, rail, airports ...
In November 1992, six highly accurate Global Positioning System (GPS) survey units were stationed within or near the NDW for an eight hour period.
Watercourse and ToB locations can be determined directly in the field using high precision GPS survey units or else interpreted remotely through photogrammetric analysis of high ...
... information systems and has employed proprietary software packages on a number of schemes. All aspects of mapping and network analysis work, including input from GPS survey units, have ...
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