NDLI: Research on trajectory planning of On-The-Fly observing for the active feed receiver in FAST

Content Provider	IEEE Xplore Digital Library
Author	Deng Sai Jing Fengshui Yang Guodong Liang Zize Yu Dongjun
Copyright Year	2015
Description	Author affiliation: Inst. of Autom., Beijing, China (Deng Sai; Jing Fengshui; Yang Guodong; Liang Zize) \|\| Nat. Astron. Obs., Beijing, China (Yu Dongjun)
Abstract	On-The-Fly (OTF) observing is one of the five kinds of operation mode owned by Five-hundred-meter Aperture Spherical Radio Telescope (FAST). In order to guarantee the active feed receiver move stably during the OTF observation, its trajectory planning was dealt with in this paper. Considering the trajectory in local coordinate system is complex, the paper planned its trajectory planning in the equatorial coordinate system. For the Earth's rotation, in order to guarantee the active feed receiver to start smoothly from a standstill and to soft-stop stably in the specified time when scanning along the declination, the right ascension and declination were planned with the double S velocity profile at the same time. The resulting trajectory is ensured the continuation in position, velocity and acceleration under local coordinate system, meanwhile, considering the execute ability of the mechanism, the trajectory respect specified limits in velocity, acceleration and jerk. An example and the comparison between the original trajectory and the planned trajectory are given to illustrate the advantage of the presented approach.
Starting Page	4393
Ending Page	4399
File Size	430691
Page Count	7
File Format	PDF
ISBN	9789881563897
ISSN	19341768
DOI	10.1109/ChiCC.2015.7260320
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-28
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Technical Committee on Control Theory, Chinese Association of Automation
Subject Keyword	Decision support systems double S On-The-Fly observing FAST telescope trajectory planning Hafnium compounds
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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