SONAR SYSTEM AND METHOD PROVIDING LOW PROBABILITY OF IMPACT ON MARINE MAMMALS

摘要

Low probability of marine impact (LPMMI) sound signals have a modulation component selected to reduce a behavioral response from a marine mammal from that which would occur when transmitting another sound signal having approximately the same time duration component, approximately the same bandwidth component, and approximately the same center frequency component as the LPMMI waveform but having a modulation component comprising a frequency modulation.