http://www.k-wave.org/forum/topic/build-phased-arry-in-2d Support for the k-Wave MATLAB toolbox en-US Thu, 14 May 2026 23:25:41 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/build-phased-arry-in-2d#post-8661 Thu, 10 Nov 2022 09:51:13 +0000 LiHz 8661@http://www.k-wave.org/forum/ <p>Hi<br /> I have two problems when I using k wave to simulation.<br /> (1)I defined a spot that could be used as source and senor.I want this point to transmit ultrasound and pass through different medium ,then receive echo signals.The problem is that the signals I received has got a large amplitude at the t=0 time.I try to transmit a new ultrasound in single medium and use the first signal subtract the second,but the result still has got a large amplitude at the t=0 time(smaller then once),it is confusing to me.<br /> (2)I made a seris of spot in a line to build a Phased arry in 2D.I use source.u_mask to avoid adjacent elements receiving transmitted signals but in the received signals there still exist amplitude at the t=0 time.I wonder how can I only get the echo signals.<br /> Thank for your brilliant toolbox and forward to the reply.<br /> Best wishes<br /> Hz Li </p>