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.
Type:
Grant
Filed:
December 13, 2012
Date of Patent:
April 12, 2016
Assignees:
Commissariat à l'énergie et aux énergies alternatives, CONSORZIO NAZI INTERUNIV PER LE TELECOMUNICAZIONI (CNIT)
Inventors:
Raffaele Derrico, Andrea Conti, Davide Dardari, Alain Sibille