计算机科学 ›› 2024, Vol. 51 ›› Issue (6A): 230700148-7.doi: 10.11896/jsjkx.230700148
谷雨泰, 赵京翼, 杨腾, 陈冲
GU Yutai, ZHAO Jingyi, YANG Teng, CHEN Chong
摘要： 随着智能化、自动化技术的不断发展,室内定位技术的应用场景日益广泛,如何提高室内定位系统的精度和可靠性一直是研究热点。对基站布局进行优化,提升系统整体的定位精度是现有的室内定位系统优化方法之一。对于该方法,现有的研究普遍选择采用其他相似领域的已有方法,主要的两种方法中用于评价卫星共轭的精度稀释因子忽略了基站与标签的距离;作为导弹、惯导系统中落点精度评价因子的概率误差方法没有考虑基站几何结构的影响。对此,提出了一种基于精度稀释因子和概率误差方法的精度评价模型,用于推导三维室内定位系统的最优基站布局,该模型同时考虑了距离和几何结构对室内定位精度的影响,可以很好地应用于室内定位的领域。所提方法在程序模拟和实际定位实验中均取得了优异的效果。在程序模拟中,最优基站布局系统的定位误差均值相比传统四顶角定位系统降低了约14.38%,在实际定位实验中,最优布局的定位精度和效果都得到了显著提升。实验结果验证了精度评价模型的准确性与实用性。所提出的最优基站布局方法在三维室内定位领域具有很高的应用价值和普适性,能够有效提高室内定位系统的精度和效果。
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