http://www.k-wave.org/forum/topic/reading-complex-waveform Support for the k-Wave MATLAB toolbox en-US Tue, 12 May 2026 23:05:29 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/reading-complex-waveform#post-7978 Sat, 05 Dec 2020 18:47:50 +0000 tuuva 7978@http://www.k-wave.org/forum/ <p>Hey,</p> <p>I faced the same issue and I found a dirty "hack" but only for harmonic signals:</p> <p>Let your initial source be like " A*sin(f*t + P)" then you can create another simulation with a source: "A*cos(f*t + P)" and when you read the data you can mix them simply like z = a + ib.</p> <p>Hope it is clear enough, it did the trick for me, obviously it is quite hacky but maybe it can help for simple wave simulation (as I was facing myself).</p> <p>Ciao </p> http://www.k-wave.org/forum/topic/reading-complex-waveform#post-171 Wed, 15 Jun 2011 16:56:12 +0000 bencox 171@http://www.k-wave.org/forum/ <p>Hi Diwaker,</p> <p>Magnitude and phase (and complex pressure) are concepts usually used for describing signals in the frequency domain. As k-Wave models pressure in the time domain it is real. The complex values come from taking the Fourier transform of the time series.</p> <p>You could find magnitude and phase values directly using k-Wave if you used a sinusoidally varying source, by comparing the input and output time series (both sinusoids) and seeing what the difference is in magnitude and phase.</p> <p>Hope that helps,</p> <p>Ben </p> http://www.k-wave.org/forum/topic/reading-complex-waveform#post-170 Wed, 15 Jun 2011 12:00:06 +0000 Diwaker 170@http://www.k-wave.org/forum/ <p>Hi!</p> <p>How can we read Complex waveform at the sensors. I want to derive real and imaginary yielding Magnitude and Phase values of the oscillations.</p> <p>Any suggestion would be highly appreciated.</p> <p>Best regards,</p> <p>Diwaker Jha </p>