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Precision of the attitude algorithm of the strap-down inertial navigation system
Zhang, Wei; Shi, Kui; Ai, Yun; Guo, Juan
2019
Conference Name9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment
Source Publication9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment
Volume10839
Conference Date2018-06-26
Conference PlaceChengdu, China
PublisherSPIE
Contribution Rank1
Abstract

Based on the principle of the strap-down inertial navigation system and the attitude algorithm, a novel evaluation method is proposed. It could be used to effectively diagnostic the precision of the attitude algorithm. The experimental data including Algorithm 1 (N=2, P=0, optimal two-sample), Algorithm 2 (N=2, P=1) and Algorithm 3 (N=2, P=2) is recorded. The precision of the three algorithms is evaluated by calculating the relative error. In addition, the influence of the sampling frequency on the precision is investigated. The test results show that the precision of Algorithm 2 and Algorithm 3 is approximate; as the sampling frequency is improved from 1Hz to 20Hz, the precision of the attitude algorithm can research 0.08°. When choosing the attitude algorithm of the strap-down inertial navigation system, increasing the number of the sample not always depresses the coning error, improving the sampling frequency and using the former attitude to renew the number of the sample of the period could improve the precision of the attitude algorithm, further. © 2019 SPIE.

Department网络信息中心
DOI10.1117/12.2504808
Indexed ByEI ; CPCI
ISBN9781510623200
Language英语
ISSN0277786X;1996756X
WOS IDWOS:000461822400006
EI Accession Number20190706488938
Citation statistics
Document Type会议论文
Identifierhttp://ir.opt.ac.cn/handle/181661/31248
Collection网络信息中心
AffiliationXi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
Recommended Citation
GB/T 7714
Zhang, Wei,Shi, Kui,Ai, Yun,et al. Precision of the attitude algorithm of the strap-down inertial navigation system[C]:SPIE,2019.
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