Automatic Velocity Model Estimation with Damped Reflection Seismic Waveform

Full waveform inversion (FWI) has the power of estimating velocity models from prestack seismic data in arbitrary complex regions. We present a frequency domain layerstripping FWI method utilizing information from damped reflection waveform. The observed data is weighted in time domain and Fourier transformed into frequency domain, while the forward and inverse problems are formulated directly in frequency domain. We have assessed this layerstripping FWI method with Marmousi model and typical short-offset surface geometry. Numeric results showed this damped reflection waveform inversion algorithm can speed up convergence even in several iterations, especially for the shallow portion of the model.