Self-correcting adaptive tracking system (sats)

G - Physics – 01 – S

Patent

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G01S 5/14 (2006.01) H04W 64/00 (2009.01) H04W 84/12 (2009.01) G01S 19/46 (2010.01)

Patent

CA 2725781

A system and method for self and group location and tracking based on ultra wide band ranging among members of the group is presented. The system comprises an anchored station, a plurality of nodes, each node having at least knowledge of where the node is facing and heading, knowledge of all pair wise distances among all of the plurality of nodes, and ability to exchange information among the nodes and with the anchored station via relays. The system and method find a new position estimate of the group in accordance with an adaptive search process based on constraints of the ultra wide band ranging, and the search process enables extracting directional information and adaptively stabilizing orientation of the group. In one embodiment, adaptively stabilizing the orientation of the group is performed using an orientation-correcting polygon matching process.

L'invention concerne un système et un procédé pour la localisation et le suivi propres et de groupe basés sur le classement de bandes ultralarges entre des membres du groupe. Le système comprend une station ancrée, une pluralité de nuds, chaque nud ayant au moins connaissance de lorientation du nud et de la direction du nud, connaissance de toutes les distances appariées entre toute la pluralité de nuds, et la capacité d'échanger des informations entre les nuds et avec la station ancrée par l'intermédiaire des relais. Le système et le procédé trouvent une nouvelle estimation de position du groupe en accord avec un processus de recherche adaptatif basé sur des contraintes du classement de bande ultralarge, et le processus de recherche permet l'extraction d'informations directionnelles et la stabilisation adaptative de l'orientation du groupe. Dans un mode de réalisation, la stabilisation adaptative de l'orientation du groupe est réalisée à l'aide d'un processus de mise en correspondance de polygones de correction d'orientation.

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