多边法坐标测量系统关键布局参数对测量精度影响的研究

doi:10.3969/j.issn.1000-1158.2023.07.01

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Abstract To study the influence of stations mutual position relationship on the measurement accuracy of multilateration system, an error transfer model was derived from the coordinate solution formula.The formula related to the error amplification factor and the station layout parameters in the model are studied and analyzed.From this formula, it can be concluded that increasing two key layout parameters within a certain range can improve the measurement accuracy of the system, which has been verified through simulation and experiments. The experimental results showed that the repeatability error of the system can be reduced from 20μm to 10μm when the key layout parameters were increased from 1m to 3m, and the optimization effect was obvious. Meanwhile, the systems with similar layout parameters had been compared, whose stations were at different locations. The results showed that the different locations of stations in system rarely affected the system precision while systems layout parameters were almost consistent, and suggested that method proposed can improve the measurement accuracy and had flexibility.

Key words： metrology large scare coordinate measurement multilateration layout optimization stations position error amplification factor

Received: 09 January 2023 Published: 17 July 2023

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TB92

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	Articles by authors
	LIANG Chu-yan
	MIAO Dong-jing
	LI Jian-shuang
	KONG Ming
	LI Lian-fu
	WANG De-li
	LIU Yang

Cite this article:

LIANG Chu-yan,MIAO Dong-jing,LI Jian-shuang, et al. Research on Influence of Key Layout Parameters on Measurement Accuracy in Multilateration System[J]. Acta Metrologica Sinica, 2023, 44(7): 1009-1018.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2023.07.01 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2023/V44/I7/1009

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