Boundary virtual reference tag improved algorithm based on RFID
基于RFID的边界虚拟参考标签改进算法

According to the scene analysis of the indoor location algorithm, and on the basis of BVIRE algorithm, this paper proposed an improved algorithm called IMPRO_BVIRE. Against the non-linear attenuation law of the signal in the radio channel, IMPRO_BVIRE algorithm adopted a kind of non-linear interpolation method to calculate the RSSI values of virtual reference tags, adopting small probability of exclusion in the selection of the neighboring reference tags, which excluded the impact of the small probability point to positioning accuracy, and by averaging IMPRO_BVIRE algorithm could counteract the signal volatility caused by shadow. Simulation and experimental results show that IMPRO_BVIRE algorithm has lower positioning error.