GNSS High-Precision Positioning Guide: RTK vs PPP vs DGPS

Achieving centimeter-level accuracy with GNSS requires advanced error-mitigation technologies. While standard smartphone GPS yields 3-5 meter errors due to ionospheric delay and satellite clock offset, RTK and PPP achieve sub-centimeter accuracy for land surveying, precision agriculture, and drone mapping.

Interactive GNSS Positioning Method Estimator

Select your hardware configuration and correction service to estimate positioning precision and convergence time:

Receiver Hardware:

Correction Network:

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