This paper is concerned with an application study of model-based fault detection method to a ship propulsion system. When modeling the object system, Quasi-ARMAX model with multi-model form is used. In this model, the...
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This paper is concerned with an application study of model-based fault detection method to a ship propulsion system. When modeling the object system, Quasi-ARMAX model with multi-model form is used. In this model, the system non-linearity is incorporated into model parameters by using non-linear non-parametric models (NNMs). Kullback discrimination Information (KDI) is introduced as fault detection index to evaluate the distortion in identified model, which is caused by a fault. The effectiveness of the method is verified through simulation studies on the ship propulsion system.
The paper presents a new filtering scheme for the removal of impulsive noise in color images. It is based on estimating the probability density function for color pixels in a filter window by means of the kernel densi...
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The paper presents a new filtering scheme for the removal of impulsive noise in color images. It is based on estimating the probability density function for color pixels in a filter window by means of the kernel density estimation method. A quantitative comparison of the proposed filter with the vector median filter shows its excellent ability to reduce noise while simultaneously preserving fine image details.
In this paper a novel approach to the problem of impulsive noise removal in color images based on the nonparametric density estimation is presented. The basic idea behind the new image filtering technique is the maxim...
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In this paper a novel approach to the problem of impulsive noise removal in color images based on the nonparametric density estimation is presented. The basic idea behind the new image filtering technique is the maximization of the similarities between pixels in a predefined filtering window. The new method is faster than the standard vector median filter and preserves better edges and fine image details. Simulation results show that the proposed method outperforms other standard algorithms of the reduction of impulsive noise in color images.
The problem of estimation of a frequency of a complex sinusoidal signal buried in white measurement noise is considered. It is shown that, for a fixed model order, the variance of the autoregressive frequency estimate...
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ATM multicasting using the multicast address resolution server (MARS) and multicasting server (MCS) has been presented as an efficient scheme for supporting IP multicast over ATM. On the other hand, Internet TV, dista...
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ATM multicasting using the multicast address resolution server (MARS) and multicasting server (MCS) has been presented as an efficient scheme for supporting IP multicast over ATM. On the other hand, Internet TV, distance learning, and file distribution are emerging large-scale multicast applications in which only a single source has to deliver data to all hosts participating in the multicast group. We introduce a new scheme for electing MCSs among all hosts in the network to minimize both the end-to-end path delay and the overall load across the network for single source applications. We introduce a new measure of the overall load which is determined by calculating the number of packets' copies multiplied by the number of hops done to complete the transmission of one packet from the sender to all members in the multicast group.
This paper is on the digital control of a continuous-time non-linear system by observer-based state feedback. Some discrete-time observer and controller are built online at each sample time according to the linear app...
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This paper is concerned with a unified methodology for sub-optimal design of proportional-integral and proportional-integral-derivative delta domain controllers for SISO plants. Problems of how to satisfy both the nom...
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This paper is on the digital control of a continuous-time non-linear system by observer-based state feedback. Some discrete-time observer and controller are built online at each sample time according to the linear app...
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This paper is on the digital control of a continuous-time non-linear system by observer-based state feedback. Some discrete-time observer and controller are built online at each sample time according to the linear approximation of the system about the current estimation point. This methodology is exemplified through numerical simulation of some load speed control in a mechanical system subjected to backlash and only using the measurement of the driving motor speed.
A number of algorithms has been proposed for extending ABR congestion avoidance algorithms in ATM networks to perform feedback consolidation at the branch points of multicast connections. Schemes that attempt to maxim...
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Distributed objects are increasingly becoming predominant with the widespread use of object-oriented technology. Coupled with object-oriented systems is the heterogeneity of computer systems that are interoperating to...
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