FIG. 3.

(a) Stochastic mean period (diamonds), deterministic period (dash-dot line) and two analytic approximations, T₀ = 2τ + P₀/γ_r (Eq. (4), dashed line) and an analytic estimate based on Eq. (2) (solid line), vs. γ_r for the NFB-only system with α = 10000, τ = 1, C₀ = 50, β = 0. (b) Coefficient of variation (diamonds), the Poisson-like contribution (dashed line), and more accurate analytic prediction (solid line). (c) Mean period vs. α with γ_r = 800, for β = 0, 0.1, 0.2 as diamonds, circles, and crosses, respectively. (d) C.V. as a function of α for the same three values of β as above. Analytic approximations as in (a) and (b) are also shown in (c) and (d), respectively. Each symbol represents the average over 1000 samples.