The problem of networking supervision and traffic rate control in multi-service network systems is studied by using concepts of Nash equilibrium and Stackelberg strategy under assumption of two-level system architectu...
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The problem of networking supervision and traffic rate control in multi-service network systems is studied by using concepts of Nash equilibrium and Stackelberg strategy under assumption of two-level system architecture. Models of users, network provider and overall system in game-theoretic setting are presented. Linear Stackelberg incentive strategies are derived for both elastic and non-elastic traffic, and verified using Kelly's example. Outlines of the two-level integrated control and supervision architecture, and of the proposed fuzzy-Perti-net supervisor are given.
In industrial photogrammetric measurement with CCD cameras, the number of target images may amount to several hundred when large and complex objects are involved. It is therefore impractical to use solely manual means...
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This paper presents a novel watermarking technique for digital audio signals. A visually recognizable binary image served as a watermark is embedded into an audio signal in discrete cosine transform domain. In order t...
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ISBN:
(纸本)7801501144
This paper presents a novel watermarking technique for digital audio signals. A visually recognizable binary image served as a watermark is embedded into an audio signal in discrete cosine transform domain. In order to enhance robustness and make good use of masking characteristics of the audio signal, the techniques of pseudo-random permutation and energy-based permutation are used during watermarking. The experimental results show that the proposed watermarking technique is robust to several signal manipulations, such as filtering, compression, and so on.
In stereoscopic images, the behavior of a curve in space is related to the appearance of the curve in the left and right image planes. Formally, this relationship is governed by the projective geometry induced by the ...
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An analysis of structural model of a ship propulsion benchmark leads to identifying the subsystems with inherent redundant information. For a nonlinear part of the system, a Fuzzy logic based FD algorithm with adaptiv...
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An analysis of structural model of a ship propulsion benchmark leads to identifying the subsystems with inherent redundant information. For a nonlinear part of the system, a Fuzzy logic based FD algorithm with adaptive threshold is employed. The results illustrate the applicability of structural analysis as well as fuzzy observer.
Robust linear parameter varying (LPV) control design techniques are applied to the attitude control of the X-33, a single-stage to orbit prototype vehicle. The focus of the research is to develop techniques which will...
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A resonant filter approach is proposed for direct identification of continuous-time transfer functions from input-output data when the input contains periodic components. The asymptotic properties of the method are an...
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A resonant filter approach is proposed for direct identification of continuous-time transfer functions from input-output data when the input contains periodic components. The asymptotic properties of the method are analysed; in particular the noise reduction properties are emphasised. Some illustrative simulations are provided.
Traditional way of interconnection of industrial fieldbuses is used for data acquisition and operator control. This type of interconnection is not suitable for realtime control as it usually uses MS Windows based soft...
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Traditional way of interconnection of industrial fieldbuses is used for data acquisition and operator control. This type of interconnection is not suitable for realtime control as it usually uses MS Windows based software gateways that are not capable of real-time processing of information. To assure real-time data transfer it is necessary to use different principle of interconnection. This new approach is based on hardware gateways. Hardware gateways can transfer data in predictable time. At present time hardware gateways are already used to interconnect fieldbuses of different level. Our paper presents that it is possible to use hardware gateways to interconnect fieldbuses of same level.
One of the most important components of recent automation systems of machines, production lines and technological processes is the communication subsystem. Instead of parallel bus connections, the serial buses on vari...
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One of the most important components of recent automation systems of machines, production lines and technological processes is the communication subsystem. Instead of parallel bus connections, the serial buses on various hierarchical levels of control structures are used. This contribution deals with problems of implementation of serial communication buses in a heterogeneous control instrumentation environment in industrial plants. It presents an aid for dealing with such problems on basis of a laboratory of industrial automation with heterogeneous communication testbed.
Combining position and force control is highly desirable in many robot applications. Many years of extensive research has resulted in a number of promising control approaches, but often too much engineering effort is ...
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Combining position and force control is highly desirable in many robot applications. Many years of extensive research has resulted in a number of promising control approaches, but often too much engineering effort is required in order to evaluate a low level (high performance) control scheme on a real manipulator. The new control system we have obtained has two main advantages: first it provides a total open control architecture, and second it is the simplicity and the interactivity of the platform developed. Using this new control architecture, any force and motion control strategy can be programmed and implemented in a graphical and easy way.
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