Abstract
The importance of recording the full range of frequencies is widely accepted for high resolution imaging. Higher frequencies provide a sharper wavelet. They can improve temporal resolution. Lower frequencies reduce the side lobes of the wavelet. They can suffer less from scattering and attenuation in the earth. Low frequency data provides deeper penetration for the clear imaging of deep targets. Thus, the high fidelity and wide bandwidth seismic imaging requires wider range of frequencies data and less destructive interference in frequency. A modified reverse time migration with broadband deghosting compensation is derived in this paper. The deghosting function is applied to forward and backward propagation to attenuate source and receiver ghosts effects, respectively. The image condition is also reformulated to make the process more stable. The numerical examples provide experimental evidence for the improvement of imaging with deghosting compensation.
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