Optimal sensor configuration for complex systems with application to signal detection in structures

Payman Sadegh, J. C. Spall

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    Abstract

    The paper considers the problem of sensor configuration for complex systems. The contribution of the paper is twofold. Firstly, we define an appropriate criterion that is based on maximizing overall sensor responses while minimizing redundant information as measured by correlations between multiple sensor outputs. Secondly, we describe an efficient and practical algorithm to achieve the optimization goals, based on simultaneous perturbation stochastic approximation (SPSA). SPSA avoids the need for detailed modeling of the sensor response by simply relying on observed responses as obtained by limited experimentation with test sensor configurations. We illustrate the application of the approach to optimal placement of acoustic sensors for signal detection in structures. This includes both a computer simulation study for an aluminum plate, and real experimentations on a steel I-beam.
    Original languageEnglish
    Title of host publicationIMTC 2000. Proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference, 2000.
    PublisherIEEE
    Publication date2000
    ISBN (Print)0-7803-5890-2
    DOIs
    Publication statusPublished - 2000
    EventIMTC 2000. Proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference, 2000. -
    Duration: 1 Jan 2000 → …

    Conference

    ConferenceIMTC 2000. Proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference, 2000.
    Period01/01/2000 → …

    Bibliographical note

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