An Active Pointing Compensator for Large Beam Waveguide Antenna Under Wind Disturbance

doi:10.1109/tmech.2015.2479635

CORC > 新疆天文台 > 研究单元未命名 > 110米口径全可动射电望远镜（SmART） > 110米大口径全可动射电望远镜关键技术研究（973项目） > 课题2：复杂环境下天线结构保型与高精度指向控制

	An Active Pointing Compensator for Large Beam Waveguide Antenna Under Wind Disturbance
	Zhang, Jie; Huang, Jin; Wang, Shuangfei; Wang, Congsi
刊名	Ieee-Asme Transactions on Mechatronics
	2016-04-01
卷号	21 期号:2 页码:860-871
关键词	Beam Waveguide Antennas Control System Modeling Pointing System Wind
ISSN号	1083-4435
DOI	10.1109/tmech.2015.2479635
文献子类	Article
英文摘要	With increasing interest in the application of large beam waveguide antenna operated at high frequencies, the requirement for pointing accuracy becomes more demanding. Owing to wind disturbance inevitably causing certain reflector surface distortions which lead to a pointing error, the overall antenna performance decreases. To decrease the pointing deviation, this study analyzes the pointing error caused by the structural deformation under wind disturbance and proposes a novel real-time pointing error correction system (RPECS) by designing the configuration of an active control beam waveguide with a realtime position adjustable plate mirror (APM). Through inverse displacement analysis, the pointing errors resulting from reflector surface distortions are compensated through properly adjusting the position of the APM. A displacement amplification factor is designed to ensure that the displacement of the APM should fall within the driving stroke range. Using a 65-m S/X band antenna, the simulation results show that the root-mean-square pointing error with RPECS is reduced by 92.6% compared with the traditional control method, the gain loss is only about 0.04 dB after compensation.
WOS关键词	CONTROL-SYSTEMS ; TELESCOPES
WOS研究方向	Automation & Control Systems ; Engineering
项目编号	2015CB857100 ; 51522507 ; 51475349 ; 51490660
语种	英语
WOS记录号	WOS:000372368700024
资助机构	National 973 Program ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/1562]
专题	新疆天文台_110米口径全可动射电望远镜（SmART）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题2：复杂环境下天线结构保型与高精度指向控制
作者单位	Xidian Univ, Minist Educ, Key Lab Elect Equipment Struct Design, Xian 710071, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jie,Huang, Jin,Wang, Shuangfei,et al. An Active Pointing Compensator for Large Beam Waveguide Antenna Under Wind Disturbance[J]. Ieee-Asme Transactions on Mechatronics,2016,21(2):860-871.
APA	Zhang, Jie,Huang, Jin,Wang, Shuangfei,&Wang, Congsi.(2016).An Active Pointing Compensator for Large Beam Waveguide Antenna Under Wind Disturbance.Ieee-Asme Transactions on Mechatronics,21(2),860-871.
MLA	Zhang, Jie,et al."An Active Pointing Compensator for Large Beam Waveguide Antenna Under Wind Disturbance".Ieee-Asme Transactions on Mechatronics 21.2(2016):860-871.