Orientation of radio-telescope secondary mirror via parallel platform

Sajjad Keshtkar, Alexander Poznyak, Eusebio Hernandez, Armando Oropeza

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this work a parallel manipulator (Stewart platform) is used to align and maintain the position of the secondary mirror of a radio-telescope. The six degree of freedom platform gives the significant advantage to reach the maximum performance for the positioning task. This system uses six lineal actuators with changeable lengths to obtain the desired position. The filtered version of sliding mode algorithm is used to control and orient the system in presence of unmodelled dynamics and perturbations. It provides chattering effect reduction and improving of the performance of the system.

Original languageEnglish
Title of host publication2015 12th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467378390
DOIs
StatePublished - 14 Dec 2015
Event12th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2015 - Mexico City, Mexico
Duration: 26 Oct 201530 Oct 2015

Publication series

Name2015 12th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2015

Conference

Conference12th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2015
Country/TerritoryMexico
CityMexico City
Period26/10/1530/10/15

Keywords

  • Parallel platform
  • Radio-telescope orientation
  • Sliding mode control
  • Stewart Platform

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