Figures of the Article

• The first-stage （a） and the second stage （b） inversion results of Marmousi model for P-wave velocity v_P （left） and S-wave velocity v_S （right）
• Flow chart of NAD full waveform inversion in frequency-domain
• Real model of anomaly block inversion for P-wave velocity v_P （a） and S-wave velocity v_S （b）
• Location maps of seismic source and receiver
• The first-stage （a） and the second-stage （b） inversion results of the anomaly block model for P-wave velocity v_P （left） and S-wave velocity v_S （right）
• Inversion error curve
• The inversion results of the anomaly block model for P-wave velocity v_P （a） and S-wave velocity v_S （b）
• Real model of double-layer medium for P-wave velocity v_P （a） and S-wave velocity v_S （b）
• Location maps of seismic source and receiver
• The first-stage （a） and the second stage （b） inversion results of the two-layer medium model for P-wave velocity v_P （left） and S-wave velocity v_S （right）
• Inversion error curve
• Location maps of seismic source and receiver
• The inversion results of the two-layer medium model for P-wave velocity v_P （a） and S-wave velocity v_S （b）
• Marmousi real model （a） and initial model （b） for P-wave velocity v_P （left） and S-wave velocity v_S （right）
• Location maps of seismic source and receiver
• Inversion error curve
• The inversion results of Marmousi model for P-wave velocity v_P （a） and S-wave velocity v_S （b）