3.3.1. One Anomaly without Fault

In this group of experiments, the velocity model is divided into five layers without fault, and there is only one anomaly. We made predictions for a single shot point and multiple shot points. The velocity field and anomaly images obtained through training are shown in Figure 9. There is no obvious difference in the prediction of the velocity field. In order to better view the prediction effect of the velocity field, we have produced vertical velocity profiles, as shown in Figure 10. The prediction error of a single shot point at an anomaly is smaller than that of a multi-shot-point prediction.

**Figure 9.** Prediction for velocity field and anomaly in velocity model with one anomaly and no fault.

**Figure 10.** Vertical velocity profiles of velocity field with one anomaly and no fault.
