Use of Interference Patterns to Control Sound Field Focusing in Shallow Water

The possibility of controlling localized fields in multimode shallow water waveguides based on the principle interference invariance was studied. Within framework numerical experiments a wide frequency range 100–350 Hz and intervals 10–100 km, possibilities focusing sound field by wavefront reversal focal spot tuning analyzed. scanning carried out with fixed distribution at receiving transmitting vertical antenna apertures. A comparative analysis features control for summer winter stratification layer out. It is shown that parameters during were more stable waveguide. demonstrated had piecewise continuous character domain one track jump-passing other accordance waveguide fringes range–frequency domain.