Visualization of spatio temporal GPS uncertainty within a GIS environment

Suresh Kumar Lodha; Amin P. Charaniya; Nikolai Faaland; Srikumar Ramalingam

doi:10.1117/12.488302

30 July 2002 Visualization of spatio temporal GPS uncertainty within a GIS environment

Suresh Kumar Lodha, Amin P. Charaniya, Nikolai Faaland, Srikumar Ramalingam

Proceedings Volume 4744, Radar Sensor Technology and Data Visualization; (2002) https://doi.org/10.1117/12.488302
Event: AeroSense 2002, 2002, Orlando, FL, United States

Abstract

The importance of accurate registration of GPS (Global Positioning System) tracked objects embedded within a GIS (Geographic Information Systems) context has emerged as a critical need in several land, marine, and air navigational systems both for civilian and defense applications. The object of this work is to measure, model and geo-spatially register the positional accuracy of objects carrying GPS receivers against a GIS background. Although positional accuracy is affected by a number of factors, in this work we have focused on GPS modes (standalone or differential), type of environment (urban or foliage), and type of expected movement of objects. The Ashtech Z-12 sensor is used to collect the data. Linear models are used to estimate the errors associated with the horizontal position information. This error is then visualized upon a `1/2 foot resolution aerial imagery of the UCSC (University of California, Santa Cruz) campus. Estimates of speed and direction errors are used to create visualizations of spatio-temporal uncertainty associated with an object walking through the campus.

Citation Download Citation

Suresh Kumar Lodha, Amin P. Charaniya, Nikolai Faaland, and Srikumar Ramalingam "Visualization of spatio temporal GPS uncertainty within a GIS environment", Proc. SPIE 4744, Radar Sensor Technology and Data Visualization, (30 July 2002); https://doi.org/10.1117/12.488302

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