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Abnormal Source Identification for Parabolic Distributed Parameter Systems
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DOI：10.1109/TSMC.2019.2956985.png)
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Abstract
En 中文
Identification of abnormal source hidden in distributed parameter systems (DPSs) belongs to the category of inverse source problems. It is important in industrial applications but seldom studied. In this article, we make the first attempt to investigate the abnormal spatio-temporal (S-T) source identification for a class of DPSs. An inverse S-T model for abnormal source identification is developed for the first time. It consists of an adaptive state observer for source identification and an adaptive source estimation algorithm. One major advantage of the proposed inverse S-T model is that only the system output is utilized, without any state measurement. Theoretic analysis is conducted to guarantee the convergence of the estimation error. Finally, the performance of the proposed method is evaluated on a heat transfer rod with an abnormal S-T source.
Keywords:
Observers
Adaptation models
Fault detection
Actuators
Time measurement
Adaptive systems
Adaptive observer
distributed parameter systems (DPSs)
inverse source problems
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