Positioning accuracy estimation

摘要

A method for fingerprinting positioning decision support includes obtaining a geographic distribution probability of positions of measurement. A first collection of simulated measurements according to a signal model is generated, wherein each simulated measurement is associated with a respective pixel. The signal model is based on base stations located in the area. Fingerprinting positioning reference data is computed from the first collection and positions of the selected pixels. A second collection of simulated measurements is generated, which is statistically independent to the first collection. These simulated measurements are associated with a respective intended position within the area. Fingerprinting positioning is performed by the second collection utilizing the computed fingerprinting positioning reference data. An estimated accuracy of the fingerprinting positioning is calculated using a comparison between the intended position and the estimated position. This is made to evaluate positioning capabilities of fingerprinting positioning based on the measurement strategy.

主权项

1. A method for fingerprinting positioning decision support, comprising of:
obtaining a geographic distribution probability of positions of measurement according to a measurement strategy; generating a first collection of simulated measurements according to a signal model, each simulated measurement in said first collection being associated with a respective pixel selected in dependence on said geographic distribution probability; said signal model being based on at least base stations located in said area or to be located in said area; computing fingerprinting positioning reference data from said first collection of simulated measurements and positions of said selected pixels; generating a second collection of simulated measurements according to said signal model, said second collection being statistically independent to said first collection, each signal of said second collection being associated with a respective intended position within said area; performing fingerprinting positioning by said second collection of simulated measurements utilizing said computed fingerprinting positioning reference data, giving respective estimated positions; and calculating an estimated accuracy of said fingerprinting positioning obtainable by said measurement strategy, using a comparison between said intended position and said estimated position for each of the measurements of said second collection, to evaluate positioning capabilities of fingerprinting positioning based on said measurement strategy.