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DGPS Survey

DGPS Survey

High-Precision Geospatial Positioning with Differential GPS

At Cartospatial Technologies, our DGPS (Differential Global Positioning System) Surveys are designed for centimeter-level positioning accuracy across diverse terrains. Using state-of-the-art dual-frequency GNSS receivers, we deliver accurate, reliable, and georeferenced data critical for infrastructure planning, land development, and asset mapping.

Key Features of Our DGPS Surveys

  • ✅ High Accuracy Positioning
    • Achieves sub-meter to centimeter-level accuracy
    • RTK and PPK solutions available based on site requirements
  • ✅ Dual-Frequency GNSS Receivers
    • Supports GPS, GLONASS, Galileo, and BeiDou constellations
    • Enhanced satellite connectivity and signal stability in tough environments
  • ✅ Real-Time Corrections
    • Base and rover system for on-the-go corrections
    • Real-time kinematic (RTK) mode ensures live positional updates
  • ✅ Post-Processed Solutions
    • PPK workflow for remote or low-signal areas
    • Data correction using national CORS stations or in-house base logs
  • ✅ Georeferenced Output
    • Assigns coordinates in any desired projection system (WGS84, UTM, or local grids)
    • Ideal for integration into GIS, BIM, and CAD systems
  • ✅ Portable & Flexible Operations
    • Lightweight setups for rugged field environments
    • Easily adaptable for drone ground control, utility mapping, or pipeline alignment
  • ✅ Wide Application Spectrum
    • From urban construction zones to rural landscapes and forested areas
  • ✅ Reliable Even in Remote Areas
    • Long battery life and offline post-processing support for inaccessible terrains

Applications

  • Ground Control Point (GCP) marking for aerial surveys
  • Boundary demarcation and land parceling
  • Road alignment and corridor mapping
  • Utility and pipeline route surveys
  • Infrastructure and urban planning
  • Agricultural and environmental studies
  • Hydrological and canal alignment surveys
  • Georeferencing of satellite or drone imagery

Deliverables

📍 Geospatial Data Outputs

  • CSV file with Latitude, Longitude, Elevation, and Point IDs
  • Shapefiles or geodatabases for GIS integration
  • DXF/DWG export for CAD platforms

📍 Maps & Visual References

  • Georeferenced site maps with labeled features and survey lines
  • Base-to-rover network layout maps

📍 Raw and Corrected Data Sets

  • Raw GNSS logs from base and rover units
  • PPK or RTK corrected position files
  • Rinex and OBS files if applicable

📍 GCP Reports

  • List of all Ground Control Points with coordinate accuracy and field photos
  • GCP layout plan for integration with UAV or satellite data

📍 Survey Report Documentation

  • Field notes, setup methodology, and coordinate systems used
  • Base station location details and correction file summary
  • Accuracy report and QA/QC procedures followed

📍 Supporting Charts

  • Satellite visibility and PDOP charts
  • Correction timeline logs and signal strength plots

At Cartospatial Technologies, we bring unmatched precision, reliability, and technical expertise to every DGPS survey project. Whether you’re mapping infrastructure corridors or laying out development boundaries, our DGPS services help you build with confidence.

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