http://www.k-wave.org/forum/topic/underwater-acoustic-imaging Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 01:01:04 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/underwater-acoustic-imaging#post-8287 Mon, 09 Aug 2021 10:12:03 +0000 122014006 8287@http://www.k-wave.org/forum/ <p>Hi team, </p> <p>Thank you for your quick response. What can I do if I can't detect a distant object using Kwave? </p> http://www.k-wave.org/forum/topic/underwater-acoustic-imaging#post-8276 Wed, 04 Aug 2021 20:20:52 +0000 Bradley Treeby 8276@http://www.k-wave.org/forum/ <p>There is no problem with modelling a variety of source strengths / propagation distances / frequencies. The limitation is with the dynamic range. The perfectly matched layer which absorbs the outgoing waves on the edge of the computational domain gives between -60 dB and -80 dB of attenuation, depending on the scenario (see e.g., <a href="http://bug.medphys.ucl.ac.uk/papers/2017-Robertson-JASA.pdf">here</a>). If your wave decays by more than this amount (e.g., due to spherical spreading), then it won't be "detectable" above the waves that aren't absorbed by the PML. </p> http://www.k-wave.org/forum/topic/underwater-acoustic-imaging#post-8265 Fri, 23 Jul 2021 05:27:05 +0000 122014006 8265@http://www.k-wave.org/forum/ <p>Hi team, </p> <p>I am using K wave for modeling underwater acoustic imaging objects. when I tried to increase the depth of the object from the sensor array, I was not able to detect the object. Because no signal will be reached to that depth. Is there any limitation for signal strength in Kwave? I used 500KHZ frequency with a strength 100MPa. Can I use Kwave for modeling an underwater object placed at 3 or more meters apart from the sensors? </p>