Patent ID: 11892577
Assignee: WUHAN CHANGSHENG MINE SECURITY TECHNOLOGY LIMITED
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 3:
4. The method of claim 3, further comprising:
after performing the full waveform inversion on the third velocity model, determining whether a residual value between the third velocity model and the second velocity model is greater than a pre-set threshold,
in response to determining the residual value between the third velocity model and the second velocity model is greater than the pre-set threshold, updating the first velocity model based on the second velocity model and returning to the step of performing a full waveform inversion on the first velocity model based on the low-frequency acoustic wave data; and
in response to determining the residual value between the third velocity model and the second velocity model is not greater than the pre-set threshold, terminating the process.