Analysis of Positioning Error for Two-Dimensional Location System

Analysis of Positioning Error for Two-Dimensional Location System
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二维定位系统定位误差分析

DOI:
10.1155/2013/163958
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发表时间:
2013-11
影响因子:
--
通讯作者:
Yang Dongkai
Yang Dongkai
中科院分区:
工程技术4区
文献类型:
--
作者:
Jiang Yi;Hu Qing;Yang Dongkai

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针对二维定位系统,研究了不同定位技术对定位误差的影响。基于有无时间同步和TDOA技术的TOA测量模型,分别对有无时间同步的TOA和TDOA的性能进行了对比分析。参考节点的具体分布会影响TOA和TDOA的时间同步和时差性能。因此,很难确定哪一个更好。在使用相同参考节点的情况下,TDOA的性能总是优于没有时间同步的TOA。最后给出了两种场景下的仿真结果,验证了上述结论。
This paper investigates the positioning error using different positioning techniques for two-dimensional location system. Based on the measurement models of TOA with/without the time synchronization and TDOA techniques, the performance comparison analysis between TOA with/without the time synchronization and TDOA is presented respectively. The performance of TOA with the time synchronization and TDOA is influenced by the specific distribution of the reference nodes. Hence, it is hard to determine which one is better. The performance of TDOA is always superior to TOA without the time synchronization using the same reference nodes. These conclusions are finally illustrated by the simulation results presented in two scenarios.
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