Fig. 9
From: Nonlinear electronic oscillators as time sensors for high-precision positioning applications
(a) Circle map orbit, and (b) corresponding cobweb plot. (c) Limit cycle and fixed point of the Poincaré map derived from simulation of the original system. (d) Output spectrum \(X(f) = |\mathcal {F}(x(t))|\). The frequency spacing equals \(1/(k+s)T\). Forcing parameters: \(A = 75\), \(s = 0.1\), \(k = 60\). 1 : 1 cycle. Circuit parameters: \(\log _{10} g = 1.18\), \(\log _{10} Q = 1.44\), \(K = 0.5\).
