Publications related to Self-Adaptive Attractor-Shaping for Oscillators Networks

Noise induced temporal patterns in populations of globally coupled oscillators

Max-Olivier Hongler, Roger Filliger, Philippe Blanchard, Julio Rodriguez

The population dynamics of an assembly of globally coupled homogeneous phase oscillators is studied in presence of non-Gaussian fluctuations. The variance of the underlying stochastic process grows as t + \beta^2 t^2 ( \beta being a constant) and therefore ...

Shaker Verlag2009

Networks of mixed canonical-dissipative systems and dynamic hebbian learning

Max-Olivier Hongler, Julio Rodriguez

We study the dynamics of a network consisting of N diffusively coupled, stable- limit-cycle oscillators on which individual frequencies are parametrized by

w_k, k = 1, . . . ,N

. We introduce a learning rule which influences the wk by driving the system t ...

2009

Adaptive Frequency Oscillators and Applications

Auke Ijspeert, Jonas Buchli, Ludovic Righetti

In this contribution we present a generic mechanism to transform an oscillator into an adaptive frequency oscillator, which can then dynamically adapt its parameters to learn the frequency of any periodic driving signal. Adaptation is done in a dynamic way ...

2009

Frequency analysis with coupled nonlinear oscillators

Auke Ijspeert, Jonas Buchli, Ludovic Righetti

We present a method to obtain the frequency spectrum of a signal with a nonlinear dynamical system. The dynamical system is composed of a pool of adaptive frequency oscillators with negative mean-field coupling. For the frequency analysis, the synchronizat ...

2008

Frequency Synthesis for a Low-Power 2.4 GHz Receiver Using a BAW Oscillator and a Relaxation Oscillator

Christian Enz

In this paper, a solution to realize local oscillators (LO) for a low power super-heterodyne receiver is presented. The first oscillator uses a bulk acoustic wave (BAW) resonator with high Q-factor. A quasi- harmonic quadrature relaxation oscillator with l ...

2007

Mean-field theory revives in self-oscillatory fields with non-local coupling

A simple mean-field idea is applicable to the pattern dynamics of large assemblies of limit-cycle oscillators with non-local coupling. This is demonstrated by developing a mathematical theory for the following two specific examples of pattern dynamics. Fir ...

2006

Dynamic hebbian learning in adaptive frequency oscillators

Auke Ijspeert, Jonas Buchli, Ludovic Righetti

Nonlinear oscillators are widely used in biology, physics and engineering for modeling and control. They are interesting because of their synchronization properties when coupled to other dynamical systems. In this paper, we propose a learning rule for osci ...

2006

Collective synchronization in populations of globally coupled phase oscillators with drifting frequencies

Felix Naef, Jacques Rougemont

We generalize the Kuramoto model for coupled phase oscillators by allowing the frequencies to drift in time according to Ornstein-Uhlenbeck dynamics. Such drifting frequencies were recently measured in cellular populations of circadian oscillator and inspi ...

American Physical Society2006

A simple, adaptive locomotion toy-system

Auke Ijspeert, Jonas Buchli

In order to make the transfer of biological principles to engineering problems successful, it is important to study the fundamental properties of biological systems. The goal is to arrive with useful abstractions that are (1) implementable, (2) testable by ...

MIT Press2004

Secure Positioning in Sensor Networks

Jean-Pierre Hubaux, Srdan Capkun

So far, the problem of positioning in sensor and ad hoc networks has been studied in a non-adversarial setting. We show that most of the proposed positioning algorithms are highly vulnerable to attacks from compromised network nodes and malicious (outside) ...

2004

Self-Adaptive Attractor-Shaping for Oscillators Networks

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Noise induced temporal patterns in populations of globally coupled oscillators

Networks of mixed canonical-dissipative systems and dynamic hebbian learning

Adaptive Frequency Oscillators and Applications

Frequency analysis with coupled nonlinear oscillators

Frequency Synthesis for a Low-Power 2.4 GHz Receiver Using a BAW Oscillator and a Relaxation Oscillator

Mean-field theory revives in self-oscillatory fields with non-local coupling

Dynamic hebbian learning in adaptive frequency oscillators

Collective synchronization in populations of globally coupled phase oscillators with drifting frequencies

A simple, adaptive locomotion toy-system

Secure Positioning in Sensor Networks

Adaptive Frequency Oscillators and Applications

Frequency Synthesis for a Low-Power 2.4 GHz Receiver Using a BAW Oscillator and a Relaxation Oscillator

A simple, adaptive locomotion toy-system

Mean-field theory revives in self-oscillatory fields with non-local coupling

Noise induced temporal patterns in populations of globally coupled oscillators

Networks of mixed canonical-dissipative systems and dynamic hebbian learning

Dynamic hebbian learning in adaptive frequency oscillators

Collective synchronization in populations of globally coupled phase oscillators with drifting frequencies

Secure Positioning in Sensor Networks

Frequency analysis with coupled nonlinear oscillators