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

Frigo, J R; Tilden, M W

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

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Abstract

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.

Authors:: Frigo, J R; Tilden, M W

Publication Date:: Sun Mar 01 00:00:00 EST 1998

Research Org.:: Los Alamos National Lab., Applied Theoretical Physics Div., NM (United States)

Sponsoring Org.:: USDOE, Washington, DC (United States)

OSTI Identifier:: 645546

Report Number(s):: LA-UR-97-4334; CONF-971086-
ON: DE98003310; TRN: AHC2DT03%%87

DOE Contract Number:: W-7405-ENG-36

Resource Type:: Conference

Resource Relation:: Conference: SPIE`s intelligent systems and advanced manufacturing symposium: microrobotics and microsystem fabrication conference, Pittsburgh, PA (United States), 14-17 Oct 1997; Other Information: PBD: Mar 1998

Country of Publication:: United States

Language:: English

Subject:: 99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS; 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; NEURAL NETWORKS; ANALOG SYSTEMS; SATELLITES; CONTROL SYSTEMS; DESIGN; ORIENTATION; NAVIGATIONAL INSTRUMENTS

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                    Frigo, J R, and Tilden, M W. Analog neural network control method proposed for use in a backup satellite control mode.  United States: N. p., 1998. 
        Web.

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                    Frigo, J R, & Tilden, M W. Analog neural network control method proposed for use in a backup satellite control mode.  United States.

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                    Frigo, J R, and Tilden, M W. 1998.  
        "Analog neural network control method proposed for use in a backup satellite control mode".  United States.  https://www.osti.gov/servlets/purl/645546.

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@article{osti_645546,

  title        = {Analog neural network control method proposed for use in a backup satellite control mode},

  author       = {Frigo, J R and Tilden, M W},

  abstractNote = {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.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/645546},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sun Mar 01 00:00:00 EST 1998},

  month        = {Sun Mar 01 00:00:00 EST 1998}

}

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