Abstract
Global Positioning System (GPS) technology has become an essential tool used for localization, navigation, tracking, mapping and timing. The typical accuracy of position measurement for stationary receivers and these in motion vary from 3 to 20 m. This accuracy is affected by the variety of factors such as fluctuation of time in which the signal passes through ionosphere and troposphere, inaccurate time measuring in the receiver, or the multipath propagation caused by reflections from buildings and other objects. The localization accuracy can be improved by differential measuring, usage of some additional sensors, or postprocessing. The article presents discussion of possibilities of increasing position measurement accuracy to be applied in the walking assistant device, designed to enhance quality of life for blind people by helping them in outdoor activities within the urban environment.
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Tokarz, K., Dzik, M. (2009). Improving Quality of Satellite Navigation Devices. In: Cyran, K.A., Kozielski, S., Peters, J.F., Stańczyk, U., Wakulicz-Deja, A. (eds) Man-Machine Interactions. Advances in Intelligent and Soft Computing, vol 59. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-00563-3_71
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DOI: https://doi.org/10.1007/978-3-642-00563-3_71
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-00562-6
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