New surveying module adds post-processing capabilities

December 20th, 2017, Published in Articles: PositionIT

Carlson SurveyGNSS data post-processing software is now enhanced by Precise Point Positioning (PPP) as an add-on module, allowing users to post-process their data using a single receiver. The module adds precise GNSS station positioning capabilities for a single GNSS receiver operating autonomously. It is useful for obtaining sub-metre to centimetre level absolute positioning accuracies. Highest accuracies require long-term (1 to 2 hours or more) continuous dual frequency carrier phase observations.


SurveyGNSS PPP then weighs the different observation types (code and carrier phase, various GNSS) according to a variance component estimation. Position results are obtained using a robust estimation algorithm. The SurveyGNSS PPP module can also process single frequency observations. To derive coordinates referenced to another time and/or reference frame, users may wish to employ available geodetic utilities to transform positional coordinates across time and between spatial reference frames. Designed for surveyors and positioning professionals, Carlson SurveyGNSS achieves high accuracy results for computing quality vectors and resultant positions. The software also works with Carlson SurvCE and SurvPC data collection software and with the company’s office design software.

Contact Barbara Fernandes, Carlson Software, barbcarlson@carlsonsw.com

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