System and method for estimating positioning error within a...

Details System and method for estimating positioning error within a... System and method for estimating positioning error within a...

H - Electricity

04

W

H04W 64/00 (2009.01) H04W 84/12 (2009.01) G01S 5/02 (2006.01)

Patent

CA 2668643

The invention features a method of estimating an expected error of a position estimate for use in a WLAN positioning system that estimates the position of a WLAN- enabled device. The WLAN-enabled device receives signals transmitted by a WLAN access point in range of the WLAN-enabled device. The method estimates the position of the WLAN-enabled device based on the received signals from the WLAN access point in range of the WLAN enabled device. The method also estimates an expected error of the position estimate based on characteristics of the WLAN access point in range of the WLAN enabled device, wherein the expected error predicts a relative accuracy of the position estimate.

L'invention porte sur une méthode d'estimation d'une erreur attendue sur l'évaluation d'une position pour l'utiliser dans un système de positionnement RLSF estimant la position d'un dispositif compatible RLSF. Ledit dispositif reçoit des signaux transmis par un point d'accès au RLSF dans la limite de sa porté. La méthode estime la position du dispositif en fonction des signaux reçus du point d'accès au RLSF à l'intérieur de la porté du dispositif. La méthode estime également l'erreur attendue sur l'évaluation de la position du dispositif en fonction des caractéristiques du point d'accès au RLSF à l'intérieur de la porté du dispositif, l'erreur attendue prédisant avec une relative précision l'estimation de position.

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