Figure 9. The development of spiral wave under different channel noise when the target wave is broken by artificial defects.

Artificial defects area is within 90≤i ≤95, 1≤j ≤100 (V_ij = 0). The area forced by external currents with diversity is close to the center of the network (90≤i ≤100, 90≤j ≤100). For I ₀ = 90,N ₀ = 200 (panel a) ; I ₀ = 90,N ₀ = 250 (panel b) ; I ₀ = 110,N ₀ = 200 (panel c) ; I ₀ = 110,N ₀ = 250 (panel d) ; at I ₂ = 40, coupling intensity D = 2, transient period t = 800 and no-flux boundary condition is used.