Basic Dynamics from a Pulse-Coupled Network of Autonomous Integrate-and-Fire Chaotic Circuits
نویسندگان
چکیده
This paper studies basic dynamics from a novel pulse-coupled network (PCN). The unit element of the PCN is an integrate-and-fire circuit (IFC) that exhibits chaos. We an give an iff condition for the chaos generation. Using two IFC, we construct a master-slave PCN. It exhibits interesting chaos synchronous phenomena and their breakdown phenomena. We give basic classification of the phenomena and their existence regions can be elucidated in the parameter space. We then construct a ring-type PCN and elucidate that the PCN exhibits interesting grouping phenomena based on the chaos synchronization patterns. Using a simple test circuit, some of typical phenomena can be verified in the laboratory.
منابع مشابه
Pulse-Coupled Networks of Non-Autonomous Integrate-and-Fire Oscillators and Classification Functions
Abstract This paper presents a pulse-coupled network (PCN) and considers its basic functions in terms of electronic circuits. The PCN consists of integrate-andre oscillators (IFO) coupled inhibitory to each other, and can accept an external input via excitatory coupling. When the input is given by mixing some independent pulse-trains, the PCN exhibits an interesting winner-take-all function and...
متن کاملSynchronization from Pulse-Coupled Integrate-and-Fire Chaotic Oscillators
This paper studies mutually coupled integrateand-fire type chaotic oscillators. The coupling is realized by impulsive switchings and the system exhibits various synchronous and asynchronous phenomena. We give a basic classification of the chaos synchronization phenomena and their breakdown patterns. The stability of the synchronous states can be confirmed using the piecewise exact solutions, an...
متن کاملNetwork-induced chaos in integrate-and-fire neuronal ensembles.
It has been shown that a single standard linear integrate-and-fire (IF) neuron under a general time-dependent stimulus cannot possess chaotic dynamics despite the firing-reset discontinuity. Here we address the issue of whether conductance-based, pulsed-coupled network interactions can induce chaos in an IF neuronal ensemble. Using numerical methods, we demonstrate that all-to-all, homogeneousl...
متن کاملOFFPRINT Collective chaos in pulse-coupled neural networks
We study the dynamics of two symmetrically coupled populations of identical leaky integrate-and-fire neurons characterized by an excitatory coupling. Upon varying the coupling strength, we find symmetry-breaking transitions that lead to the onset of various chimera states as well as to a new regime, where the two populations are characterized by a different degree of synchronization. Symmetric ...
متن کاملNoise shaping pulse - density modulation in inhibitory neural networks with subthreshold VLSI neuron circuits
An inhibitory network model that performs noise-shaping pulse-density modulation [1] was implemented with subthreshold analog MOS circuits, aiming at the development of ultralow-power Σ∆-type AD converters. Through circuit simulations, we evaluate the effects of the noise shaping produced by the network circuit. Keywords—VLSI, pulse density modulation, noise shaping, chaotic neural networks 1 M...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- IEEE transactions on neural networks
دوره 13 1 شماره
صفحات -
تاریخ انتشار 2000