This paper deals with the problem of passivity analysis for stochastic neural networks with leakage, discrete and distributed delays. By using delay partitioning technique, free weighting matrix method and stochastic analysis technique, several sufficient conditions for the passivity of the addressed neural networks are established in terms of linear matrix inequalities (LMIs), in which both th...

The problem of passivity analysis finds important applications in many signal processing systems such as digital quantizers, decision feedback equalizers and digital and analog filters. This paper considers the passivity analysis problem for a large class of systems which involve uncertain parameters, time delays, quantization errors, and unmodeled high order dynamics. By characterizing these a...

This paper deals with the problem of Passivity analysis for neural networks with multiple time-varying delays subject to norm-bounded time-varying parameter uncertainties. The activation functions are supposed to be bounded and globally Lipschitz continuous. New passivity conditions are proposed by using Lyapunov-Krasovskii functionals and the free–weighting matrix method to relax the existing ...

The traditional strengths of passive theory can be further extended when applied to switched systems. Some background will be covered on this recent generalization of passivity using multiple storage functions. The passivity-based control application considered in this paper is in distributed systems. A constructive method is covered to solve the output synchronization problem for networked mec...

This paper proposes a nonlinear controller to extend the Zwidth of a haptic device. A time-domain passivity analysis of the Z-width diagram leads to the new haptic controller, which employs acceleration feedback. The passivity condition for one degree of freedom (1DOF) haptic interaction with a virtual wall via the proposed controller is derived using passivity theory in the frequency domain. T...

This paper considers the robust stability of the interconnection of a linear timeinvariant differential nominal system and passive uncertainties in the behavioral framework. A generalized version of the well-known passivity theorem is formulated by using quadratic differential forms. Based on the generalized passivity theorem, it is proved that, if the nominal system is Φ-passive, the interconn...

The behavior of the passive walker [1] is governed by its dynamics, and therefore, walking velocity cannot be controlled. On the other hand, a hip joint of a human is driven by an antagonistic pair of muscles, and its passivity seems to contribute to his/her behavior. In this paper, we propose to control walking velocity of a pneumatic actuated biped by changing hip passivity. We can control hi...

In this paper a structure will be given which in a remarkably simple way offers a solution to the implementation of different telemanipulation schemes for discrete time varying delays by preserving passivity and allowing the highest transparency possible. This is achieved by splitting the communication channel in two separate ones, one for the energy balance which will ensure passivity and one ...

passive system cannot deliver more energy than what is stored. Typically, a passive system delivers less than what is stored since useful energy is invariably and irreversibly lost through friction and other dissipative processes that convert useful work into heat. Such properties show that passivity is related to principles used to develop mathematical models for all kinds of physical systems....