Analog neural network control method proposed for use in a backup satellite control mode

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The authors propose to use an analog neural network controller implemented in hardware, independent of the active control system, for use in a satellite backup control mode. The controller uses coarse sun sensor inputs. The field of view of the sensors activate the neural controller, creating an analog dead band with respect to the direction of the sun on each axis. This network controls the orientation of the vehicle toward the sunlight to ensure adequate power for the system. The attitude of the spacecraft is stabilized with respect to the ambient magnetic field on orbit. This paper develops a model ... continued below

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14 p.

Creation Information

Frigo, J. R. & Tilden, M. W. March 1, 1998.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this article can be viewed below.

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  • Los Alamos National Laboratory
    Publisher Info: Los Alamos National Lab., Applied Theoretical Physics Div., NM (United States)
    Place of Publication: New Mexico

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Description

The authors propose to use an analog neural network controller implemented in hardware, independent of the active control system, for use in a satellite backup control mode. The controller uses coarse sun sensor inputs. The field of view of the sensors activate the neural controller, creating an analog dead band with respect to the direction of the sun on each axis. This network controls the orientation of the vehicle toward the sunlight to ensure adequate power for the system. The attitude of the spacecraft is stabilized with respect to the ambient magnetic field on orbit. This paper develops a model of the controller using real-time coarse sun sensor data and a dynamic model of a prototype system based on a satellite system. The simulation results and the feasibility of this control method for use in a satellite backup control mode are discussed.

Physical Description

14 p.

Notes

OSTI as DE98003310

Source

  • SPIE`s intelligent systems and advanced manufacturing symposium: microrobotics and microsystem fabrication conference, Pittsburgh, PA (United States), 14-17 Oct 1997

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  • Other: DE98003310
  • Report No.: LA-UR--97-4334
  • Report No.: CONF-971086--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 645546
  • Archival Resource Key: ark:/67531/metadc694981

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  • March 1, 1998

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  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 3, 2016, 1:31 p.m.

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Frigo, J. R. & Tilden, M. W. Analog neural network control method proposed for use in a backup satellite control mode, article, March 1, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc694981/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.