改进的RFID室内定位算法  

Improved RFID indoor localization algorithm

作　　者：段本亮[1] 李建雄[1] 陈明省[1] 毛陆虹[2] 

机构地区：[1]天津工业大学电子与信息工程学院,天津300387 [2]天津大学电子信息工程学院,天津300072

出　　处：《天津工业大学学报》2013年第4期66-70,共5页Journal of Tiangong University

基　　金：国家自然科学基金资助项目(61072010)

摘　　要：针对射频识别定位系统中RSSI线性定位算法的边界标签定位精度低问题,提出了一种改进的算法.该算法在边缘区域布置参考标签,并在这些布置参考标签的区域采用LANDMARC算法,而其它区域仍采用RSSI线性定位算法.使用MATLAB软件对算法进行仿真,结果表明:针对边界区域的定位标签,改进的算法比RSSI线性定位算法具有更好的定位精度,提高了整体定位区域的定位准确性;与LANDMARC算法相比,改进的算法由于使用较少的参考标签,所以降低了成本并且减少了算法的运行时间,从而提高了定位系统的实时性.To solve the problem of the low location accuracy of tracking tags near the boundary of detection area in RSSI linear location algorithm of radio frequency identification location system, an improved algorithm is proposed. The algorithm operating principle is that place reference tags in the boundary of detection area and use the LANDMARC algorithm in this area, use RSSI Lirlear location algorithm in the other area. MATLAB software is used to simulate the algorithm. The simulation results show that the improved algorithm achieves a higher accuracy towards tracking tags near the boundary of detection area compared with the original algorithm, consequently improves location accuracy of the whole area; compared with the LANDMARC algorithm, the improved algorithm uses the less reference tags, so reduces the cost and the running time of the algorithm, improves the positioning system＇s real time.

关 键 词：射频识别 参考标签 接收信号强度指示 定位精度 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]