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Precise GPS without base / reference stations

By [email protected] - 7th December 2006 - 12:09

The Norwegian company Terratec is introducing software capable of accurate positioning based on post-processing of GPS-observations, without the use of reference stations or DGPS services.
Typical accuracy for kinematic applications are 3 cm horizontally and 4 cm vertically (RMS). This level of accuracy makes the software unique worldwide.TerraPos utilize precise orbits and clock corrections for the satellites, together with advanced error modeling to produce positions with impressing accuracy. Typpical RMS for a kinematic survey is 3 cm horizontally and 4 cm vertically. The result is an excellent tool for positioning in applications allowing for post-processing, such as airborne photogrammetric or lidar operations, seabed mapping, or seismic surveying.The development started several years ago at the Norwegian University of Life Sciences (UMB), and has continued as a cooperation between UMB and Terratec AS. Having its origin in an academic environment has provided TerraPos a base on highly optimized algorithms and state-of-the-art error modeling, but TerraPos has been completely re-programmed with the market introduction in mind.The result is user-friendly and stable software, with remarkable performance.The Norwegian Hydrographic Service has also been an important partner, and is now already using TerraPos in their production of the official Norwegian sea-charts.Terratec has used TerraPos for their own aerial operations for almost one year already, and has saved both time and money. There is no need to provide reference stations at the ground, or making passes over them to initialize GPS/INS.âNow we can go anywhere anytime, and always get positioning with high accuracy and reliabilityâ says Ãivind Aase, CEO in Terratec AS.For more information:⢠See Terratecs homepage:⢠Contact Terratec AS, Even Brøste, tlf 0047 45 48 52 38, [email protected]⢠Download folder:⢠Download paper from this years FIG-Congress in Munich:

Author: Even Brøste

Bio.: Terratec AS

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