http://www.k-wave.org/forum/topic/far-field-simulation Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 00:20:38 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/far-field-simulation#post-8381 Thu, 16 Dec 2021 11:36:39 +0000 Bradley Treeby 8381@http://www.k-wave.org/forum/ <p>Hi Marco,</p> <p>There is no way in k-Wave at least to directly compute the far-field without running the wave through the intervening grid points. One possibility might be to use another tool or analytical expression, and then input this into k-Wave across a plane as a Dirichlet boundary condition.</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/far-field-simulation#post-8303 Fri, 03 Sep 2021 16:18:32 +0000 inzunzam.marco 8303@http://www.k-wave.org/forum/ <p>Hi Bradley, </p> <p>I have a question regarding a PA source in 2D. I noticed that I need to place a source (say a 100 micron disc) far in the field so that I get the correct reconstructed (DAS) image from a linear array of sensors. The reconstruction becomes distorted the closer I place the source in space to the sensor array.</p> <p>This makes my grid size and computation time significantly large. Is there any way to setup the simulation with the far field condition so that I can reduce the grid points between my source/receivers?</p> <p>Thank you,<br /> Marco </p> http://www.k-wave.org/forum/topic/far-field-simulation#post-6155 Thu, 19 Oct 2017 09:21:37 +0000 Bradley Treeby 6155@http://www.k-wave.org/forum/ <p>Hi Alessandro,</p> <p>Do you mean numerically? If so, then this would be possible using k-Wave. I'd suggest working through the examples and the k-Wave manual. After that, it should be clear how to set up a simulation with a line detector (if it's infinite, you could use a point detector in 2D).</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/far-field-simulation#post-6148 Thu, 12 Oct 2017 13:04:36 +0000 AlessandroPolo 6148@http://www.k-wave.org/forum/ <p>Hi Everyone!<br /> I was wondering if there is a way to compute the acoustic far field from an acoustic pressure collected by a line detector.<br /> Does anyone have an answer to that?</p> <p>regards</p> <p>Alessandro </p>