Particle motion sensor signals and the pressure sensor signals data from a towed marine seismic streamer are combined to generate an up-going pressure wavefield component and a down-going particle motion wavefield component. The down-going particle motion wavefield component is extrapolated from the receiver position depth level to the source position depth level. The up-going pressure wavefield component is multiplied by the extrapolated down-going particle motion wavefield component, generating a first product. Then, n.sup.th order surface related multiples in the pressure wavefield are iteratively calculated utilizing a product of (n-1).sup.th surface related multiple free data and the extrapolated down-going particle motion wavefield component. The calculated n.sup.th order surface related multiples are iteratively subtracted from the recorded pressure wavefield, generating the n.sup.th order surface related multiple free data.

 
Web www.patentalert.com

< Low-cost haptic mouse implementations

> Missile defense system

> Synthetic aperture ladar with chirped modelocked waveform

~ 00504