Emergency response, the built environment and GPS signal quality: simulation and analysis of urban canyons in Quebec City

Authors: O'Hara, Casey
Advisor: Thériault, Marius
Abstract: The general objective of this investigation is to extract the most pertinent information currently available on developing an emergency 9-1-1 system for cellular phones in the North American context. The specific objective of this project is to propose a methodology for determining the average obstruction by buildings which affect GPS satellite signal quality. A statistical model of GPS signal quality based on a field measurement campaign in the urban districts of Quebec City (Canada) was used to simulate this phenomenon. The measurements demonstrated a spatial variation in signal quality according to the building obstruction over the local sky. An increase in the percent of obstructed sky led to an increase in the probability of losing GPS signal lock. Continuous maps of GPS signal loss probability were created for sheets of the Quebec topographic database at the 1:20,000 scale using the Inverse Distance Weighting technique of spatial interpolation (IDW).
Document Type: Mémoire de maîtrise
Issue Date: 2006
Open Access Date: 12 April 2018
Permalink: http://hdl.handle.net/20.500.11794/18861
Grantor: Université Laval
Collection:Thèses et mémoires

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