Phase inversion of one-dimensional artificial seismic data

Oscillations of an inhomogeneous one-dimensional loop have been simulated f or the purpose of examining the effect of excitation and damping on the sou nd-speed inversion based on phase analysis. It has been demonstrated that t he procedure is robust against the realization noise arising from frequent, stochastic excitation of weakly damped waves, but that strong damping can spoil the inversion.