Signalgun Signature measured in Water and Air (Tank Experiment)

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