Localization method and system using non-regenerative UWB relays
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United States of America Patent
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Apr 12, 2016
Grant Date -
Jun 20, 2013
app pub date -
Dec 13, 2012
filing date -
Dec 15, 2011
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Abstract
The present invention relates to a method and a system for determining the position of an object which can be a passive or an active tag (140). The system comprises a plurality of anchor nodes (111,112) and a plurality of non-regenerative relays (121,122,123) of known positions. In case of an active tag, a UWB pulse signal is emitted by the tag and received by the anchor nodes either directly or via a relay. In case of a passive tag, UWB pulse signals are sent by the anchors nodes and reflected back, either way being either a LOS path or a relayed path. A processing node (130) collects the signals received by the anchor nodes (111,112) to estimate the position of the tag.
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