Error estimate concerning a target device's location operable to move in a wireless environment

Petri Myllymäki, Petri Kontkanen, Teemu Roos, Kimmo Valtonen, Jussi Lahtinen, Johannes Wettig, Antti Tapani Tuominen, Henry Tirri

Forskningsoutput: Patent

Sammanfattning

A method for determining an error estimate concerning a target device's location. The target device moves and communicates in a wireless environment using signals having at least one measurable signal value. A probabilistic model of the wireless environment indicates a probability distribution for signal values at several sample points in the wireless environment. A set of observations of signal values is made and the target device's location is estimated based on the probabilistic model and the set of observations. The error estimate ( 43 ) is determined as a combination of products over several sample points (SP). Each product comprises a probability distribution ( 41 ) for the sample point in question being the target device's location and a distance function ( 43 ) between the sample point in question and the target device's estimated location.
Originalspråkengelska
Utgivningsår16 jun 2005
StatusPublicerad - 16 jun 2005
MoE-publikationstypH1 Beviljat patent

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