k-Wave

1. Gabor
   

   Member
   Joined: Nov '12
   Posts: 1

   Hi,

   I want to run a simulation with a "diagnostic ultrasound transducer" with the C++ based simulation.
   The results of the C++ based simulation differ from the results of the Matlab computed simulations.
   I get a Sensor data array of size (element_length*number_elements, simulation depth) instead of (number_elements, simulation depth). I noticed in the matlab code of the simulation, that there is some reconstruction going on durng the matlab-based simulation, which is not implemented in the c++ version.
   I just sum up the multiple channels which I get from the c++ sensor_data, but i didnt get the same result as in the matlab-based case.
   How do I get the faster c++ version to calculate the same results as the matlab based simulation?

   Posted 11 years ago #

2. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Hi Gabor,

   For your comparison, is the elevation focus of the transducer set to inf? If not, simply summing the results from the C++ version won't give the same results unless you also correctly time shift the signals from the grid points that belong to each physical transducer element. See also the discussion here.

   Brad.

   Posted 11 years ago #

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