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Fundamentals Of Surveying2D

Global Positioning System (GPS) - Theory & Concepts

Principles, segments, methods, coordinate systems, and error sources in GPS surveying.

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GPS Dilution of Precision Simulator

Visualize how satellite geometry affects positional uncertainty (DOP).

Satellite Angular Spread (°)90

Results

DOP≈4.00\text{DOP} \approx 4.00
Positional Uncertainty=DOP×2m=8.0 m\text{Positional Uncertainty} = \text{DOP} \times 2\text{m} = 8.0 \text{ m}
Receiver Error Area

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