Abstract
Fingerprint localisation is one of the most important research topics in the current indoor positioning system, which has attracted the attention of scholars both at home and abroad. Aiming at the problems of poor stability, vulnerability to environmental impacts and difficulty to distinguish fingerprint feature by using traditional RSS fingerprint, a new URSS fingerprint based on the unit signal strength ratio is presented in this paper. Compared with the traditional RSS mean fingerprints, the results of experimental indicate the URSS fingerprint not only has the ability of suppressing fingerprint fluctuation, enhances the stability of the fingerprint, but also can enhance their ability to distinguish between similar fingerprints, and eventually improve the accuracy on location phase.
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