sonar signature

A sonar signature is the unique acoustic "fingerprint" of an object or vessel detected by underwater sound waves. When sonar emits sound pulses, they bounce off objects and return, creating signals that reveal the shape, size, and material of what’s underwater. Different objects, like ships, submarines, or marine life, produce distinctive patterns in these signals. By analyzing these patterns, operators can identify, track, or classify underwater targets, much like a fingerprint helps recognize individuals. Essentially, a sonar signature is the characteristic sound pattern that helps differentiate and identify underwater objects.