PPK
Post-Processed Kinematic correction for centimeter accuracy
Post-Processed Kinematic (PPK) is a GNSS correction technique that achieves centimeter-level accuracy by processing raw satellite observations against reference station data after fieldwork is complete.
Unlike RTK which requires a real-time correction stream, PPK lets you collect data anywhere and process it later using base station files from CORS networks or your own reference receiver.
Planned Features
How It Will Work
- 1
Collect Raw Observations
Use the Static workflow to record RINEX observations at your points of interest, or collect data while moving for kinematic processing.
- 2
Download Base Station Data
Obtain RINEX files from a nearby CORS station or your own base receiver covering the same time period as your observations.
- 3
Process in FastXY
Import both files into FastXY. The app will compute the baseline solution and generate corrected coordinates.
- 4
Apply Corrections
Review the results and apply the corrected coordinates to your project features. Export with full accuracy metadata.
Use Cases
- Remote Area Surveys
Collect data in areas without cellular coverage for RTK, then process later with downloaded base data
- Drone Ground Control
Establish highly accurate GCPs for photogrammetry projects using post-processed coordinates
- Quality Assurance
Verify RTK measurements by comparing against post-processed solutions
- Cost-Effective Accuracy
Achieve survey-grade accuracy without RTK subscription costs using free CORS data