Underwater Noises of Open-Circuit Scuba Diver

The features of respiratory noises and fins for open-circuit scuba divers, indicating a multipole character emission, are specified in cameral conditions. It demonstrates possibility to detect low-frequency components with pressure gradient sensor near field. A estimating the rate an diver is demonstrated at distances up 100 m real sea. gives opportunity bearing (time delay pair hydrophones) by 150 Thus, underwater divers may be successfully applied monitor safety diving prevent waterside intrusion trespassers.