http://www.k-wave.org/forum/topic/different-waveform-shape-when-using-a-time-varying-source Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 15:41:22 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/different-waveform-shape-when-using-a-time-varying-source#post-6637 Tue, 06 Nov 2018 21:54:21 +0000 Bradley Treeby 6637@http://www.k-wave.org/forum/ <p>If you are inputing a short Gaussian when using a time-varying source, i.e., one that meets stress confinement, at least partially, then the initial pressure amplitude will be related to the integral of the Gaussian.</p> <p>I'm not sure what you mean by <em>"The output waveforms should have an exponential shape and a factor of two in the exponential"</em>.</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/different-waveform-shape-when-using-a-time-varying-source#post-6631 Sun, 04 Nov 2018 21:35:54 +0000 cmb11163 6631@http://www.k-wave.org/forum/ <p>Hi</p> <p>I recently started using a time varying source. To cut a long story short the output waveform I get from source.p0 and a time varying source have the same form, however with the time varying source the waveform amplitude appears to be squared. My source amplitude has a Gaussian shape in time.</p> <p>The output waveforms should have an exponential shape and a factor of two in the exponential fit is important. If anyone knows why this happens i.e. different units or something else I would be very grateful. </p>