Fig. 5From: Analysis of rotation sensor data from the SINAPS@ Kefalonia (Greece) post-seismic experiment—link to surface geology and wavefield characteristicsExamples of the signal and noise spectra (Fourier amplitude spectrum density, ASD) and the corresponding signal-to-noise ratio computed for the records shown in Fig. 4. a Records from the rock site (phase 2). b Records from the soft-soil site (phase 3). Left rotation sensor spectra. Center translational sensor spectra. Right signal-to-noise ratioBack to article page