http://www.k-wave.org/forum/topic/ultrasound-radiation-pattern-for-annular-array Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 05:19:07 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/ultrasound-radiation-pattern-for-annular-array#post-4732 Mon, 22 Sep 2014 10:18:03 +0000 Bradley Treeby 4732@http://www.k-wave.org/forum/ <p>Hi Joontaek Jung,</p> <p>There is no in-built way to specify an annular array. However, you could create an annular array by defining <code>source.p_mask</code> in the shape of the array (e.g., a disk in a plane), and then assign the source values to <code>source.p</code> in ring shaped blocks, being careful to order the source points following MATLAB's column-wise linear matrix indexing. For example, if the source is centred on the grid, you could order the points based on radius and angle, similar to <code>reorderSensorData</code>.</p> <p>Hope that helps,</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/ultrasound-radiation-pattern-for-annular-array#post-4720 Thu, 18 Sep 2014 12:26:01 +0000 Joontaek Jung 4720@http://www.k-wave.org/forum/ <p>Good-day.</p> <p>I am designing ultrasonic transducer array. The scheme what I am trying to make is axially symmetric circular design, so called annular array.</p> <p>What I want to simulate is ultrasonic radiation pattern of the annular array.</p> <p>The problem what I faced is "how to define geometries of transducer array"</p> <p>I think K-WAVE dosen't support the annular array scheme.</p> <p>However, is there any way to simulate the annular array scheme using K-WAVE toolbox?</p> <p>Thank you in advance. </p>