International Journal of Modelling, Identification and Control 

About: International Journal of Modelling, Identification and Control is an academic journal published by Inderscience Publishers. The journal publishes majorly in the area(s): Control theory & Computer science. It has an ISSN identifier of 1746-6172. Over the lifetime, 1262 publications have been published receiving 8861 citations. The journal is also known as: Modelling, identification and control & IJMIC.

Non-linear estimation is easy

Abstract: Non-linear state estimation and some related topics like parametric estimation, fault diagnosis and perturbation attenuation are tackled here via a new methodology in numerical differentiation. The corresponding basic system theoretic definitions and properties are presented within the framework of differential algebra, which permits to handle system variables and their derivatives of any order. Several academic examples and their computer simulations, with online estimations, illustrate our viewpoint.

Global chaos synchronisation of identical chaotic systems via novel sliding mode control method and its application to Zhu system

Abstract: Synchronisation of chaotic systems is an important research problem in chaos theory. In this research work, a novel sliding mode control method is proposed for the global chaos synchronisation of identical chaotic systems. The general result derived using novel sliding mode control method is established using Lyapunov stability theory. As an application of the general result, the problem of global chaos synchronisation of identical Zhu chaotic systems (2010) is studied and a new sliding mode controller is derived. Numerical simulations have been shown to illustrate the phase portraits of Zhu chaotic system and the sliding mode controller design for the global chaos synchronisation of identical Zhu chaotic systems.

Safety in numbers: fault-tolerance in robot swarms

Abstract: The swarm intelligence literature frequently asserts that swarms exhibit high levels of robustness. That claim is, however, rather less frequently supported by empirical or theoretical analysis. But what do we mean by a 'robust' swarm? How would we measure the robustness or – to put it another way – fault-tolerance of a robotic swarm? These questions are not just of academic interest. If swarm robotics is to make the transition from the laboratory to real-world engineering implementation, we would need to be able to address these questions in a way that would satisfy the needs of the world of safety certification. This paper explores fault-tolerance in robot swarms through Failure Mode and Effect Analysis (FMEA) and reliability modelling. The work of this paper is illustrated by a case study of a wireless connected robot swarm, employing both simulation and real-robot laboratory experiments.

Analysis, control and synchronisation of a six-term novel chaotic system with three quadratic nonlinearities

Abstract: This research work introduces a six-term novel 3-D polynomial chaotic system with three quadratic nonlinearities. Phase portraits and detailed qualitative analysis of the polynomial novel chaotic system are described. Lyapunov exponents and Lyapunov dimension for the novel chaotic system have been obtained. The maximal Lyapunov exponent (MLE) for the novel polynomial chaotic system has been found to have a large value, viz. L1 = 10.2234. Thus, the novel 3-D chaotic system exhibits strong chaotic behaviour. New results are derived for the adaptive control and adaptive synchronisation of the novel 3-D polynomial chaotic system with unknown parameters using Lyapunov stability theory. MATLAB plots have been shown to illustrate the phase portraits of the novel 3-D chaotic system and the adaptive results derived in this paper.

Global chaos synchronisation of identical Li-Wu chaotic systems via sliding mode control

Abstract: In this research work, the problem of sliding controller design for the global chaos synchronisation of identical nonlinear chaotic systems is investigated and new results are derived using Lyapunov stability theory. The general result gives a procedure for constructing a sliding mode controller for achieving global chaos synchronisation for identical chaotic systems under certain assumptions. Next, the problem of sliding controller design for the global chaos synchronisation of identical Li-Wu chaotic systems (Li et al., 2013) is investigated and a new result is derived. The sliding controller design for identical Li-Wu chaotic systems is illustrated with MATLAB simulations.