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Actuator/Sensor Placement Using Degree of Controllability and Observability for Digitally Controlled Orbiting Platforms

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Abstract

In this paper, definitions of degree of controllability/observability, which are defined based on a scalar value dependent on the controllability/observability Grammian matrix, are presented for discrete-time systems. The concepts of degree of controllability/observability are applied to the actuator/sensor placement problem for thin flexible orbiting square platforms. The LQG transient time responses for several typical systems with different degrees of controllability and observability are also displayed.

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Authors and Affiliations

  1. Aerospace Engineer, NASA Goddard Space Flight Center, MD, 20771, Greenbelt, USA

    Aprille J. Ericsson-Jackson

  2. Department of Mechanical Engineering, Howard University, DC, 20059, Washington, USA

    Peter M. Bainum (Distinguished Professor)

  3. Department of Mechanical Engineering, Howard University, DC, 20059, Washington, USA

    Guangqian Xing (Senior Research Associate)

Authors
  1. Aprille J. Ericsson-Jackson
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  2. Peter M. Bainum
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  3. Guangqian Xing
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Ericsson-Jackson, A.J., Bainum, P.M. & Xing, G. Actuator/Sensor Placement Using Degree of Controllability and Observability for Digitally Controlled Orbiting Platforms. J of Astronaut Sci 45, 73–89 (1997). https://doi.org/10.1007/BF03546382

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