GPS-Based Location Estimation System in a NLOS Environment Using a Screen Coordinate System

Provided by: Science & Engineering Research Support soCiety (SERSC)
Topic: Mobility
Format: PDF
Global Positioning System (GPS)-based location estimation systems are the optimum way to track where an object is in an outdoor environment. However, location errors occur when signals transmitted by GPS satellites are interfered with by buildings or other obstacles, since the location tracking system uses these signals. To modify the positional errors incurred by GPS signal interference, this paper proposes a measure to minimize the errors of GPS-based location estimation systems in NLOS environments. In this system, location errors are reduced by organizing the screen coordinates with collected image data, establishing an environment favorable for the application of visual information to the screen coordinate system.

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