Noise Augmentation Unit for masking submarine’s own signature when operating within the vicinity of FFCs (Friendly Foreign Countries)

To develop noise augmentation units to be used for masking submarine's own signature when operating within the vicinity of (Friendly
Foreign Countries) FFCs. Stealth Is the most important strength of submarines. While exercising with friendly foreign countries a submarine shares its acoustic signature with the FFC units. Thus, it is important to mask our own acoustic signature,