songc0a / PINN-based-Helmholtz-solver

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generate data #1

Open Mengxiangqi0 opened 7 months ago

Mengxiangqi0 commented 7 months ago

Dear Professor Song Hello! Thank you very much for sharing your code! I have a question to ask you. I noticed that in the data code generated by isotrophic, G_2D is multiplied by 7.7 and PS1 is multiplied by 12000. However, in the data code generated by VTI, G_2D is multiplied by 0.65 and PS1 is multiplied by 1000. I would like to ask you how these numbers are determined? Because I used these codes to reproduce the models of the two scatterers in your paper and found that it was the influence of these two parameters that may have caused me to not achieve the results in your paper. Thank you in advance for answering my question. Best wishes to you!

songc0a commented 7 months ago

12000 and 1000 are used to calibrate the wavefield amplitude near the range [-1,1]. No other specific reason. 7.7 and 0.65 are used to make the analytical solution and numerical solution comparable.

On Tue, Mar 5, 2024 at 12:44 PM Mengxiangqi0 @.***> wrote:

Dear Professor Song Hello! Thank you very much for sharing your code! I have a question to ask you. I noticed that in the data code generated by isotrophic, G_2D is multiplied by 7.7 and PS1 is multiplied by 12000. However, in the data code generated by VTI, G_2D is multiplied by 0.65 and PS1 is multiplied by 1000. I would like to ask you how these numbers are determined? Because I used these codes to reproduce the models of the two scatterers in your paper and found that it was the influence of these two parameters that may have caused me to not achieve the results in your paper. Thank you in advance for answering my question. Best wishes to you!

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