I am trying to use K wave for Sonar imaging simulations. I need to receive reflections from 2 or 3m away from the sensor array. But I don't get a significant amplitude from 1m or even 10cm. How can I over come this problem? Is there any provision to increase the strength of the transmitted signal beyond a level in k wave? Suggest me any other option which will help me to get significant reflections from this range. I am using a 3D kwave grid.
k-Wave
A MATLAB toolbox for the time-domain
simulation of acoustic wave fields
Regarding source strength
(4 posts) (2 voices)-
Posted 2 years ago #
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Do you have the absorption set too high or are you adding an unrealistic level of noise relative to your source amplitude?
Posted 2 years ago # -
No. I set alpha_coeff = 0.0022; % [dB/(MHz^y cm)] and alpha_power = 2;
I also tried by setting alpha_coeff = 0.0000;. But the same issue persists. What is the possible solution for this?Posted 2 years ago # -
If your simulation is linear, ie. you haven't set `medium.BonA' then it shouldn't matter what amplitude you set the source. Is your object too small? Start with a simple setup, perhaps in 2D and check you can get that to work. Copy the examples in the toolbox to help.
Best wishes
BenPosted 2 years ago #
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