Features

GNNET is the basic version, which is capable to process most GNSS applications for small, medium or large and worldwide baselines or networks.

GNNET-POST is in addition able to determine kinematic trajectories in any interval.

For special purposes (e.g. antenna calibration, attitude determination, deformation analysis) some extensions are available as additional GNNET options.

Compared to common post-processing programs GNNET-POST has some remarkable features:

    • rigorous multi-station, multi-session network adjustment
    • simultaneous adjustment of multiple reference stations and multiple mobile receivers, max. number of station and sessions depends only on computer capacity
    • use of non-differenced observations, therefore no loss of correlations between observations
    • use of code and carrier phase observations
    • automated, integrated use of various linear combinations of dual frequency observations
    • receiver independent through use of a RINEX interface
    • use of precise ephemeris (if available)
    • use of GPS and GLONASS observations
    • simultaneous processing of single and dual frequency observations
    • dynamic modelling of atmospheric parameters (troposphere, ionosphere)
    • optimized ambiguity resolution, allows solutions with very short observation times
    • simultaneous L1 and L2 ambiguity resolution, allows fast and automatic ambiguity determination in a single run
    • evaluation of all common observation techniques:
      • Static,
      • Rapid Static,
      • Pseudo-Kinematic (re-occupation),
      • Stop and Go,
      • kinematic trajectory (only with GEONAP-K)
    • ambiguity resolution Real-Time-Kinematic, On the Way, On the Fly, On the Track
    • 3-D trajectory determination with 1cm-accuracy or better
    • Parameter estimation
      • station coordinates (absolute, relative), incl. full covariance matrix
      • trajectory
      • satellite orbit parameters using kinematic orbit improvement
      • receiver and satellite clock parameters
      • atmospheric parameters (ionosphere, troposphere), functional and stochastic
      • carrier phase ambiguities
      • biases (hardware biases, tracking biases, signal biases, code-phase biases, …)
    • 2-D or 3-D attitude determination from antenna array (optional)
    • GNSS network adjustment to connect sessions and include external observations

 

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