k-Wave

1. LYM
   

   Member
   Joined: Jan '18
   Posts: 2

   Hi,

   First, thanks for the tool, it really helps me a lot with my research.

   I want to research that how the scattered wave change with time by sensor. Is there any fast way to remove the influence of the direct wave.

   Best,
   George

   Posted 6 years ago #

2. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Hi George,

   Could you run a simulation in a homogeneous medium first (i.e., without the scatterer), and then subtract this from your simulation?

   Brad.

   Posted 6 years ago #

3. LYM
   

   Member
   Joined: Jan '18
   Posts: 2

   Hi Brad,

   Thank you for your reply. I have tried your method and it helps me a lot. But I still have two questions.
   (1) The medium is changed. Can we ignore the difference between the two direct wave?
   (2) How to calculate the coefficient of the direct wave before subtracting it?

   Thanks your time very much!

   George

   Posted 6 years ago #

4. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Hi George,

   If you have a scatterer in an otherwise homogeneous background medium, then I think this is a sensible way to decompose the direct and scattered wave. If the background medium also changes, then probably not (the direct wave will not be the same in the two cases).

   I'm not sure I follow what you mean by the coefficient of the direct wave?

   Brad

   Posted 6 years ago #

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