Calibration of positioning systems

Details Calibration of positioning systems Calibration of positioning systems

H - Electricity

04

W

H04W 64/00 (2009.01) G01S 5/02 (2010.01) G01S 5/04 (2006.01) G01S 5/06 (2006.01) G01S 5/10 (2006.01) G01S 11/06 (2006.01)

Patent

CA 2405854

Mobile station positioning methods are calibrated using an error bias estimation for refining the determination of the mobile station location which does not require any added hardware to the telecommunications system. The position of the mobile station is calculated assuming no bias errors and a first order approximation of the mobile station position is derived as a function of the bias error. The bias error is then estimated and used to refine the previously calculated mobile station position.

Des procédés de positionnement de stations mobiles sont étalonnés au moyen d'une estimation de l'erreur non centrée de manière à affiner la détermination de la localisation de la station mobile, sans recours à aucun matériel supplémentaire ajouté au système de télécommunications. La position de la station mobile est calculée en supposant qu'il n'y a pas d'erreur non centrée et une approximation de premier ordre de la position de la station mobile est dérivée sous forme de fonction de l'erreur non centrée. Cette erreur non centrée est alors estimée et utilisée pour affiner la position de la station mobile précédemment calculée.

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