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Benoît PIER
DAMTP, University of Cambridge, Silver Street, Cambridge CB3 9EW, UK
Proceedings of the Royal Society of London A 459, 1105–1115 (2003)
Spatially varying systems with a central absolutely unstable region are known to give rise to self-sustained finite-amplitude globally synchronized structures. The present investigation shows how such an intrinsic behaviour may be controlled by small-amplitude forcing applied upstream of the fully developed oscillations. This technique allows the tuning of the frequency of the entire system to any frequency in a wide range, exspending only an exponentially small power.
hal-00120027
2003a_pier_royalsoc.pdf