GLSV has been awarded a Phase-II SBIR (Topic Number OSD173-J01) from the US Army to reduce or change the sound signature, in terms of magnitude, frequency, and/or duration, of a small caliber projectile as it travels downrange through the use of Active Noise Control (ANC). ANC is a method for reducing unwanted sound by introducing additional sound waves which are specifically tuned to cancel out the first. Overall control of weapon signature at the muzzle is a secondary objective.
