基于射频识别的室内定位系统算法分析

Analysis on indoor localization system algorithm based on RFID

室内环境通常比较复杂,容易受到障碍物、多径效应等较多因素的影响,而为了摆脱这些因素的干扰,实现对室内定位精度的提高,提出一种以射频识别(RFID)为基础的室内定位系统算法,对LANDMARC系统算法及其改进算法VIRE系统算法两种经典算法的实现过程进行详细的阐述,之后,基于对这两种算法的研究,采用NEWTON插值方法进行进一步的改进,仿真实验结果显示,经过改进的NEWTON插值算法的定位精度明显优于LANDMARC与VIRE两种算法,而VIRE算法的定位精度又优于LANDMARC算法。

Usually,indoor environment is complex,there are barrier,multipath effect and other influences in it.In order to get rid of these elements’disturb and enhance positional accuracy,the paper proposes indoor localization system algorithm based on RFID,and makes a statement of LANDMARC and VIRE system algorithms.Then,it makes an improvement by NEWTON interpolation method.Simulation experiment shows that,NEWTON interpolation algorithm’s positional accuracy is better than LANDMARC and VIRE system algorithms’,and VIRE system algorithm’s positional accuracy is better than LANDMARC system algorithm’s.