Extreme Values of Trilateration Localization Error in Wireless Communication Systems
Extreme Values of Trilateration Localization Error in Wireless Communication Systems
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DOI：
10.1109/pimrc48278.2020.9217059
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发表时间：
2020-08
期刊：
影响因子：
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通讯作者：
Muhammad Farooq-i-Azam;Q. Ni;M. Dong
中科院分区：
文献类型：
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作者：
Muhammad Farooq-i-Azam;Q. Ni;M. Dong
三边定位误差的解析模型用距离估计误差来表达定位误差。使用解析模型，我们研究了三边定位误差，并得出其分量的极值和其他新颖的结果。我们表明，当距离估计误差具有相反符号时，就会出现这些极值。我们进一步表明，与相同大小的距离估计误差为正时相比，如果所有距离估计误差均为负，则可以实现更好的定位精度。结果适用于可使用三边测量和多边测量进行位置估计的所有无线通信系统和网络。这包括全球导航卫星系统，例如全球定位系统、无线局域网、无线传感器网络、物联网和其他各种应用。所有结果均通过仿真进行验证。
The analytical model of trilateration localization error expresses the localization error in terms of distance estimation errors. Using the analytical model, we investigate the trilateration localization error, and derive the extreme values of its components and other novel results. We show that these extreme values occur when the distance estimation errors have opposite signs. We further show that better localization accuracy is achieved if all the distance estimation errors are negative compared to when the same magnitudes of distance estimation errors are positive. The results are applicable to all wireless communication systems and networks where trilateration and multilateration may be used for position estimation. This includes global navigation satellite systems, such as the global positioning system, wireless local area networks, wireless sensor networks, internet of things, and other miscellaneous applications. All the results are verified using simulation.