Signalgun Signature measured in Water and Air (Tank Experiment)

<ul> <li>the experiments are performed in and above a&nbsp;water tank</li> <li>signatures of a&nbsp;Stalker R1 2.5&#39;&#39; gun fired at different elevations above the water surface are measured</li> <li>the Stalker R1 2.5&#39;&#39; gun has a caliber of 0.38 in (9 mm) and is fired with blank bullets</li> <li>signatures are measured in water and&nbsp;air with B&amp;K 8105 hydrophones</li> <li>the signal recording is triggered with a&nbsp;hydrophone that is directly attached to the Stalker R1 2.5&#39;&#39; gun (it indicates when the gun is fired) - the measured signals are aligned to the main peak of the trigger signal</li> <li>recordings are averaged/stacked measurements of 4&nbsp;shots with the Stalker R1 2.5&#39;&#39;&nbsp;gun at each source elevation&nbsp;&quot;zs&quot;</li> <li>the filename indicates the source type (&quot;signalgun_&quot;), where the signal is measured (&quot;water_&quot; or &quot;air_&quot;) and the source elevation above the water surface (&quot;zs_cm.txt&quot;)</li> <li>more information can be found in the referenced publication and the sketch of the experimental set up</li> </ul>