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Bio-Inspired Computing and Networking
obtained through standard methods like the harmonic balance or the describing
function technique. Thissuggeststheideaofusingananalyticalapproximationofthe
real periodic trajectory in Equations 17.6 through 17.8. Clearly, rigorous conditions
which guarantee the reliability of the approach can be hardly derived. However,
from a practitioner’s perspective, the methodology can be a posteriori justified
comparing the obtained results with those provided by numerical experiments. An
approach, hereinafter referred to as the DFMT technique (Describing Function
and Malkin’s Theorem–based Technique), based on the following steps has been
devised:
15,16
(1) The periodic trajectories γ
i
(t) of the uncoupled oscillators are ...