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Numerical Simulation and Testing Analysis of Adaptive Heave Motion Measurements
Yang WL(杨文林); Wei SF(魏素芬); Zhang ZY(张竺英); Zhang AQ(张艾群)
Department水下机器人研究室
Conference NameInternational Conference on Measuring Technology and Mechatronics Automation
Conference DateApril 11-12, 2009
Conference PlaceZhangjiajie, China
Author of SourceCent S Univ, Carnegie Mellon Univ, Changsha Univ Sci & Technol, Nantes Univ
Source Publication2009 INTERNATIONAL CONFERENCE ON MEASURING TECHNOLOGY AND MECHATRONICS AUTOMATION, VOL II
PublisherIEEE COMPUTER SOC
Publication PlaceLOS ALAMITOS
2009
Pages263-266
Indexed ByEI ; CPCI(ISTP)
EI Accession number20094712476271
WOS IDWOS:000274896300061
Contribution Rank1
ISBN978-0-7695-3583-8
Abstract

Accurate heave measurements are important in the application of marine field to actively compensate for wave motion of a ship. An MTi unit is used to measure the heave motion of the ship in this paper. The primary error of heave measurements come from white noise and constant or slowly varying bias. The process of time integral of acceleration eliminates the white noise and a highpass filter is used to remove the bias. Then the first time integral of acceleration get the heave speed. The bilinear transformation is used to design IIR digital filter based on the conversion of analog prototype filter. Numerical simulation gets a conclusion that the mean absolute errors of heave speed measurements have relation to the cutoff frequencies of the filter. The cutoff frequency which depends proportionally to heave motion frequencies calls suboptimal cutoff frequency. The numerical simulation proves that the adaptive highpass filter with suboptimal cutoff frequency improves the precision of heave measurements. The test of heave motion measurements certifies the usefulness and correctness of the heave motion measurements with MTi unit and adaptive filter.

Language英语
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.sia.cn/handle/173321/7828
Collection水下机器人研究室
Affiliation1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
2.Graduate School of the Chinese Academy of Sciences, Beijing, China
Recommended Citation
GB/T 7714
Yang WL,Wei SF,Zhang ZY,et al. Numerical Simulation and Testing Analysis of Adaptive Heave Motion Measurements[C]//Cent S Univ, Carnegie Mellon Univ, Changsha Univ Sci & Technol, Nantes Univ. LOS ALAMITOS:IEEE COMPUTER SOC,2009:263-266.
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