Principle and performance analysis of base station cluster location

被引：0
|
作者：
Gong F. [1 ]
Li M. [1 ]
机构：
[1] School of Electronic Information and Automation, Civil Aviation University of China, Tianjin
来源：
Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics | 2023年 / 49卷 / 10期
关键词：
base station cluster; error analysis; geometric dilution of precision; multilateration; vertical dilution of precision;
D O I：
10.13700/j.bh.1001-5965.2021.0751
中图分类号：
学科分类号：
摘要：
The time difference of arrival (TDOA) can be used for airport surface multilateration (MLAT). In order to resolve the problems which include large time delay standard deviation, long baseline, poor vertical positioning accuracy, and difficult layout design, etc. A base station cluster layout of multilateration (C-MLAT) method is suggested along with the introduction of the base station cluster concept. The principle and performance state of the base station cluster location is revealed, and the C-MLAT model is established. It is easy to accurately synchronize the clock in the base station cluster and simplify the geometric dilution of precision (GDOP) calculation. The GDOP distribution state proves that C-MLAT can meet the positioning requirements by means of supplementary station or multi-base station cluster joint positioning after shortening the baseline. The horizontal accuracy error and vertical accuracy error are significantly reduced by using C-MLAT to establish class A and class B station distribution methods. The vertical positioning inaccuracy of class A and class B C-MLAT is reduced by approximately 26% and 36%, respectively, while the horizontal positioning accuracy of class A and class B C-MLAT is enhanced to 1.76 m and 1.69 m, respectively. In conclusion, C-MLAT positioning has better performance and application advantages. © 2023 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
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页码：2567 / 2578
页数：11
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