Velocity estimation via model order reduction

  title={Velocity estimation via model order reduction},
  author={Alexander V. Mamonov and Liliana Borcea and Josselin Garnier and J{\"o}rn T. Zimmerling},
SUMMARY A novel approach to full waveform inversion (FWI), based on a data driven reduced order model (ROM) of the wave equation operator is introduced. The unknown medium is probed with pulses and the time domain pressure waveform data is recorded on an active array of sensors. The ROM, a projection of the wave equation operator is constructed from the data via a nonlinear process and is used for efficient velocity estimation. While the conventional FWI via nonlinear least-squares data fitting… 

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