计算机科学 ›› 2018, Vol. 45 ›› Issue (10): 115-119.doi: 10.11896／j.issn.1002-137X.2018.10.022
陈诗军1, 王慧强2, 王园园1, 胡海婧2
CHEN Shi-jun1, WANG Hui-qiang2, WANG Yuan-yuan1, HU Hai-jing2
摘要： 基于蜂窝网的室内定位由于与通信网络共用基础设施,因此具有覆盖范围广、无需基础设施再投资等突出优点,已成为电信运营商级室内定位的首选,是5G通信领域的研究热点之一。在蜂窝网室内定位场景中,基站的布局将直接影响接收首径的数量、到达时间TOA(Time of Arrivaling)和测量误差等要素,从而影响定位精度。据此,文中提出一种面向室内定位的基站选择优化方法,以减小由于基站布局引入的误差。首先,引入TOA信息去除TDOA定位的虚定位点;其次,针对不同基站选择方案得到的定位结果,利用二次聚类的思想去除孤立点,并根据聚类结果中样本节点数量最多的类确定定位点的位置。实验结果表明,与其他优化方法相比,所提方法的室内定位平均误差降低了15.49%。
中图分类号:
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