Journal
CHINESE JOURNAL OF CHEMICAL PHYSICS
Volume 20, Issue 1, Pages 53-58Publisher
CHINESE PHYSICAL SOC
DOI: 10.1360/cjcp2007.20(1).53.6
Keywords
spiral waves; Fitzhugh-Nagumo (FHN) equation; self-exciting target wave
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A new scheme is proposed to. suppress stable and meandering spiral waves in excitable media by generating a self-exciting target wave in a local area. An arbitrary selected grid in the media is sampled, and the sampled signal is fed back into a local area in the media. Numerical simulation results confirm its effectiveness when the scheme is introduced into anisotropic (the diffusion coefficient is perturbed vs. time and/or space) and isotropic media. Results also show the scheme's robustness to spatiotemporal noise.
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