k-Wave

1. zvalus
   

   Member
   Joined: Oct '13
   Posts: 3

   Hi,
   I tried to simulate an antenna for sonar, however for it optimization different distances between transducers are required. How that could be done?

   Posted 11 years ago #

2. bencox
   

   Developer
   Joined: Mar '10
   Posts: 292

   Hi zvalus,

   Do you have a specific k-Wave question? I'm afraid we can't answer everyone's questions on acoustics more generally - much though we'd like to have time to!

   Ben

   Posted 11 years ago #

3. zvalus
   

   Member
   Joined: Oct '13
   Posts: 3

   Hi,
   I will try to specify. In this part of program ( example form "Defining An Ultrasound Transducer"):

   % =========================================================================
   % DEFINE THE ULTRASOUND TRANSDUCER
   % =========================================================================

   % physical properties of the transducer
   transducer.number_elements = 72; % total number of transducer elements
   transducer.element_width = 1; % width of each element [grid points]
   transducer.element_length = 12; % length of each element [grid points]
   transducer.element_spacing = 0; % spacing (kerf width) between the elements [grid points]
   transducer.radius = inf; % radius of curvature of the transducer [m]

   % =========================================================================

   The transducer element spacing is fixed (same distance between each element). How this could be changed?

   Posted 11 years ago #

4. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Hi zvalus,

   The kWaveTransducer class was written to take care of some of the indexing issues that arise when dealing with diagnostic ultrasound transducers in k-Wave. Almost all of its functionality can be replicated by manually defining the source and sensor structures as described in the examples and the k-Wave manual. In your case, I would suggest defining the transducer elements manually rather than using this class. In other words, define a binary source and sensor mask that corresponds to where you want your transducer elements to be located. These are just a list of points in the grid, so can have any geometry or spacing.

   I hope that helps,

   Brad.

   Posted 11 years ago #

5. zvalus
   

   Member
   Joined: Oct '13
   Posts: 3

   Thanks for your help. I will try to do simulation in the way you have written.

   Posted 11 years ago #

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