ANALYSIS OF A POLARIZED SEISMIC-WAVE MODEL

We present a model for polarized seismic waves where the data are coll ected by three-component geophone receivers. The model is based on two parameters describing the polarization properties of the waveforms. T hese parameters are the ellipticity and the orientation angle of the p olarization ellipse. The model describes longitudinal waveforms (P-wav es) as well as elliptically polarized waves. For the latter waves the direction-of-propagation of the waveform is in the plane spanned by th e ellipse's major and minor axes; Rayleigh waves are treated as a spec ial case. We analyze the identifiability of the models and derive the Cramer-Rao and mean-square-angular-error (MSAE) bounds involving one o r two three-component geophones.