In this paper we develop and apply a robust interval observer to estimate the unknown variables of uncertain chaotic systems. Considering that bounds of the uncertainties are known, we propose an observer that compute...
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ISBN:
(纸本)1424401704
In this paper we develop and apply a robust interval observer to estimate the unknown variables of uncertain chaotic systems. Considering that bounds of the uncertainties are known, we propose an observer that computes guaranteed upper and lower bounds for the unknown variables. We show that practical estimation (observer based synchronization) is asymptotically reached with bounded interval estimates. The method is applied to the synchronization of Chua's chaotic system
A new fully embedded tactile/force sensor system to be installed on the phalanges of a robot hand is presented in this paper. Each sensor consists of a distributed array of analog tactile elements and an integrated th...
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A new fully embedded tactile/force sensor system to be installed on the phalanges of a robot hand is presented in this paper. Each sensor consists of a distributed array of analog tactile elements and an integrated three-component force transducer with embedded analog and digital electronics. The tactile sensor is a matrix of electrodes etched on a flexible printed circuit board covered by pressure conductive rubber. The force sensor is an off-the-shelf integrated three components micro-joystick. Communications of the sensors with other control modules are implemented with a CAN bus link. A local processing technique is proposed to enable the transmission of both tactile and force data using a single CAN message, and eventually validate through simulative and experimental tests
Knock in spark ignition (SI) engines is an undesirable mode of combustion, causing high combustion pressure pulses associated with vibration of the engine block. This phenomenon limits performance, durability and fuel...
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Knock in spark ignition (SI) engines is an undesirable mode of combustion, causing high combustion pressure pulses associated with vibration of the engine block. This phenomenon limits performance, durability and fuel economy of SIengines. In this paper the author propose; a new knock detection method called WBKD (Wavelet Based Knock Detection), which is based on wavelet transform. Real data experiments confirmed the utility of the proposed approach for knock intensity estimating.
Continuing the papers by Tulbure et al. (2004), are presented some significant results of numerical simulations for railway traction motors, which can be treated as components of electrical locomotives EC-43, by 3.6 M...
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Continuing the papers by Tulbure et al. (2004), are presented some significant results of numerical simulations for railway traction motors, which can be treated as components of electrical locomotives EC-43, by 3.6 MW, with 80t mass. For the starting mode of operation in frequency steps of Deltaf=2.5 Hz, with the slip S c =0.1, are interesting the evolution and interpretation of r.m.s. values of input voltage U 1 [V], stator current I 1 [A], traction force F T [t], developed power P[kW] and speed v[km/h]. It is imposed the maintenance of excitation flux at nominal value Psi=2.73[Wb]
This paper presents a model for a tendon driven robot eye designed to emulate the actual saccadic and smooth pursuit movements performed by human eyes. Physiological saccadic motions obey the so called Listing's l...
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This paper presents a model for a tendon driven robot eye designed to emulate the actual saccadic and smooth pursuit movements performed by human eyes. Physiological saccadic motions obey the so called Listing's law which constrains the admissible eye's angular velocities. The paper discusses conditions making possible to implement the Listing's law on a purely mechanical basis, i.e. without active control
A fully embedded tactile/force sensor system to be installed on the phalanges of a robot hand is presented in this paper. The sensor consists of a distributed array of analog tactile elements and an integrated three-c...
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A fully embedded tactile/force sensor system to be installed on the phalanges of a robot hand is presented in this paper. The sensor consists of a distributed array of analog tactile elements and an integrated three-component force transducer with embedded analog and digital electronics. The tactile sensor is a matrix of electrodes etched on a flexible printed circuit board covered by pressure conductive rubber. The force sensor is an off-the-shelf integrated three components micro-joystick. Communications of the sensors with other control modules are implemented with a CAN bus link. A local processing technique is proposed to enable the transmission of both tactile and force data using a single CAN message. Simulative and experimental tests validate the proposed method.
Bias (lag) errors seriously limit tracking capabilities of adaptive filters. We show that frequency biases, which arise in generalized adaptive notch filtering algorithms, can be reduced if the frequency estimates are...
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Bias (lag) errors seriously limit tracking capabilities of adaptive filters. We show that frequency biases, which arise in generalized adaptive notch filtering algorithms, can be reduced if the frequency estimates are appropriately filtered. This allows one to build estimation schemes with improved tracking capabilities.
Repetitive processes are a distinct class of two-dimensional (2D) systems (i.e. information propagation in two independent directions occurs) of both systems theoretic and applications interest. They cannot be control...
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ISBN:
(纸本)1424401704
Repetitive processes are a distinct class of two-dimensional (2D) systems (i.e. information propagation in two independent directions occurs) of both systems theoretic and applications interest. They cannot be controlled by direct extension of existing techniques from either standard (termed ID here) or (most often) 2D systems theory. In this paper, we continue the development of an applications oriented systems theory for the sub-class of so-called discrete linear repetitive processes which arise in both systems theoretic and applications studies. The new results relate to the use of a so-called 2D Lyapunov equation in both stability analysis and control law design
This paper undertakes the problem of parametric yield enhancement by means of evolutionary computation techniques. This subject is an extremely important element of analogue circuit CAD and only heuristic approaches a...
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This paper undertakes the problem of parametric yield enhancement by means of evolutionary computation techniques. This subject is an extremely important element of analogue circuit CAD and only heuristic approaches are applicable, since the problem belongs to NP-hard category. This paper proposes an entirely new approach to the problem, based on evolutionary computation techniques and Monte Carlo simulations. Design guidelines for yield optimization are described. The approach is verified on benchmark examples and significant improvement, when compared with other design methods, can be observed
Repetitive processes are a distinct class of two-dimensional (2-D) systems (i.e., information propagation in two independent directions) of both systems theoretic and applications interest. They cannot be controlled b...
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Repetitive processes are a distinct class of two-dimensional (2-D) systems (i.e., information propagation in two independent directions) of both systems theoretic and applications interest. They cannot be controlled by direct extension of existing techniques from either standard [termed one-dimensional (1-D) here] or 2-D systems theory. Here, we give new results on the relatively open problem of the design of control laws using an H infin setting. These results are for the sub-class of so-called differential linear repetitive processes which arise in applications
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