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 functi...Show More
In this paper, a particle filter (PF) based RFID tag tracking method is designed. Based on the tag phase information, the multiple signal classification algorithm (MUSIC) and the Chinese remainder theorem (CRT) algorithm are designed to obtain the angle and distance information respectively, and the PF algorithm is designed through the angle and distance information model. Simulation results show ...Show More
In this paper, an RFID tag localization method based on phase particle filtering using dual-frequency phases is proposed. In order to reduce the phase error due to the multipath effect, frequency hopping technique is employed to emulate a large virtual bandwidth, and multipath suppression algorithm (MSA) is realized with the help of coarse estimation distance obtained by Inverse Fast Fourier Trans...Show More
