control performance monitoring has attracted great attention in both academia and industry over the past two decades. However, most research efforts have been devoted to the performance monitoring of linear control sy...
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control performance monitoring has attracted great attention in both academia and industry over the past two decades. However, most research efforts have been devoted to the performance monitoring of linear controlsystems, without considering the pervasive nonlinearities(e.g. valve stiction) present in most industrial controlsystems. In this work, a novel probability distribution distance based index is proposed to monitor the performance of non-linear controlsystems. The proposed method uses Hellinger distance to evaluate change of control system performance. Several simulation examples are given to illustrate the effectiveness of the proposed method.
In this paper, a robust fault detection and diagnosis (FDD) method is proposed for multiple-model systems with modeling uncertainties. A compensation step is introduced to modify the mixed states and their variances o...
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control performance monitoring has attracted great attention in both academia and industry over the past two decades. However, most research efforts have been devoted to the performance monitoring of linear control sy...
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This paper considers the recursive state estimation problem for a class of Markov jump linear systems(JMLSs) with unknown transition probabilities(TPs). Compared with other existing recursive estimators, the underlyin...
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This paper considers the recursive state estimation problem for a class of Markov jump linear systems(JMLSs) with unknown transition probabilities(TPs). Compared with other existing recursive estimators, the underlying real but unknown TPs to be addressed in our method are allowed to be time-variant. The expectation and covariances of residual error calculated in the interacting multiple model(IMM) algorithm are computed to demonstrate that Kalman filter running under true systems can still perform satisfactorily in the presence of wrong TPs and the various mode probabilities reflect the influences of uncertain TPs. A compensation operator which heuristically modifies the posterior probabilities by adjusting a compensation parameter is then developed. A moving target tracking example of the proposed method is presented to demonstrate the effectiveness.
Thermal energy is composed, by definition, of randomized carriers and is often an unwanted by-product of human-engineered functions such as propulsion, communications, and directed forms of other types of energy. This...
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