An outdoor UWB tracking system to improve safety of semi-autonomous vehicle operations
by Paul Richardson, Weidong Xiang, Dan Shan
International Journal of Ultra Wideband Communications and Systems (IJUWBCS), Vol. 1, No. 3, 2010

Abstract: UWB positioning systems show promise in improving navigational capabilities and safety of operations for semi-autonomous systems that are emerging in applications such as construction and agricultural vehicles. This paper describes an outdoor UWB positioning system used to measure the position of tracks in a semi-autonomous truck convoy. The system improves safety by providing position the vehicles control system with accurate position measurements. A measurement campaign was conducted to collect experimental range errors in open, forested and urban channels at distances ranging from 2 m to 40 m. The range errors are characterised and a model for range errors is proposed. Position errors using the proposed model are compared to the experimental data. Performance analysis regarding accuracy and position update delay is presented.

Online publication date: Wed, 24-Feb-2010

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