Robust estimation of a reception region from location fingerprints
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
|Title of host publication||2011 International Conference on Localization and GNSS ICL-GNSS June 29-30, 2011 Tampere, Finland|
|Place of Publication||Piscataway, NJ|
|Publication status||Published - 2011|
|Publication type||A4 Article in a conference publication|
|Name||International Conference on Localization and GNSS ICL-GNSS|
A method for fitting an ellipse-shaped reception region to a set of location-stamped radio signal reception reports, or location fingerprints, is presented. Reports are modelled as having a multivariate Student distribution. The method is less sensitive to outliers than existing smallest-enclosing ellipse and Normal-distribution based methods. A Gibbs sampling algorithm and an Expectation-Maximisation algorithm to compute ellipse parameters are presented.