Numerical Simulation and Testing Analysis of Adaptive Heave Motion Measurements

CORC > 沈阳自动化研究所 > 中国科学院沈阳自动化研究所 > 水下机器人研究室

	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)
	2009
会议名称	International Conference on Measuring Technology and Mechatronics Automation
会议日期	April 11-12, 2009
会议地点	Zhangjiajie, China
页码	263-266
中文摘要	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.
收录类别	EI ; CPCI（ISTP）
产权排序	1
会议主办者	Cent S Univ, Carnegie Mellon Univ, Changsha Univ Sci & Technol, Nantes Univ
会议录	2009 INTERNATIONAL CONFERENCE ON MEASURING TECHNOLOGY AND MECHATRONICS AUTOMATION, VOL II
会议录出版者	IEEE COMPUTER SOC
会议录出版地	LOS ALAMITOS
语种	英语
ISBN号	978-0-7695-3583-8
WOS记录号	WOS:000274896300061
内容类型	会议论文
源URL	[http://ir.sia.cn/handle/173321/7828]
专题	沈阳自动化研究所_水下机器人研究室
推荐引用方式 GB/T 7714	Yang WL,Wei SF,Zhang ZY,et al. Numerical Simulation and Testing Analysis of Adaptive Heave Motion Measurements[C]. 见:International Conference on Measuring Technology and Mechatronics Automation. Zhangjiajie, China. April 11-12, 2009.