Abstract

With the advantage of low cost, RFID has become a hot topic in indoor localization research. This paper presents an indoor location algorithm based on the whale optimization algorithm, which transforms the location problem into an optimization problem. Combined with esprit angle measurement algorithm and the frequency hopping ranging principle, an evaluation function integrating angle error function and distance error function is designed to constrain the search direction of whale optimization algorithm, then the positioning is completed through continuous iteration. Through experimental verification, the median error of the proposed positioning algorithm is 8.81cm.

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