http://www.k-wave.org/forum/topic/acoustic-holography Support for the k-Wave MATLAB toolbox en-US Tue, 12 May 2026 23:33:13 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/acoustic-holography#post-7180 Mon, 20 Jan 2020 17:33:01 +0000 Bradley Treeby 7180@http://www.k-wave.org/forum/ <p>Hi Tom,</p> <p>Something doesn't sound quite right. Could you say a bit more about your setup (including spatial and temporal sampling)?</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/acoustic-holography#post-7116 Tue, 05 Nov 2019 19:39:47 +0000 tom.j.manuel@gmail.com 7116@http://www.k-wave.org/forum/ <p>Hi, </p> <p>I am interested in implementing this! I have my code more or less working to take a measured plane and propagate it. However, it only works if I have source.p_mode as additive. The pressure fields are totally different if I change only source.p_mode to dirichlet. The dirichlet mode yields high pressure around the input plane and very low pressure everywhere else. Any advice on why this may be? My input source is filtered hydrophone data. </p> <p>Potentially helpful observation: the p_rms at my input plane looks as expected for additive mode, but looks almost random with dirichlet mode.</p> <p>Thank you,<br /> Tom </p> http://www.k-wave.org/forum/topic/acoustic-holography#post-4061 Mon, 04 Nov 2013 19:26:56 +0000 Bradley Treeby 4061@http://www.k-wave.org/forum/ <p>No problems - I hope you can get it to work. I forgot to mention that if you wish to reconstruct your source (i.e., the field backwards in time rather than forwards), you should reverse your time signals before assigning to <code>source.p</code>. </p> http://www.k-wave.org/forum/topic/acoustic-holography#post-4060 Mon, 04 Nov 2013 14:27:21 +0000 Anthony 4060@http://www.k-wave.org/forum/ <p>Thanks a lot Brad,</p> <p>Best regards,<br /> Anthony </p> http://www.k-wave.org/forum/topic/acoustic-holography#post-4043 Thu, 31 Oct 2013 16:36:39 +0000 Bradley Treeby 4043@http://www.k-wave.org/forum/ <p>Hi Anthony,</p> <p>Yes, you can certainly use k-Wave for this, see <a href="http://www.k-wave.org/papers/2012-Wang-IEEEIUS.pdf">here</a> for an example. Essentially, you need to specify source.p_mask to be the same size as your measurement plane, source.p to be the corresponding measurement data, and set source.p_mode = 'dirichlet' to enforce the source as a boundary condition.</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/acoustic-holography#post-4036 Wed, 30 Oct 2013 18:26:17 +0000 Anthony 4036@http://www.k-wave.org/forum/ <p>Hi,</p> <p>Reading the description of k-wave photoacoustic reconstruction functions, I was wondering if these functions could be used for acoustic holography.<br /> Let's say I have measured my acoustic field in a plane, would these reconstruction functions be suitable for reconstructing my 3D source (using some time reversal...)?<br /> It seems to be quite the same problem... Am I right?</p> <p>Best regards,<br /> Anthony </p>