Now showing items 1-2 of 2

    • Low frequency resonance backscatter from near-surface bubble clouds 

      Crum, L. A.; Schindall, J. A.; Roy, R. A.; Carey, William M. (NATO. SACLANTCEN, 1993/08)
      When active sonar systems are used to insonate the sea surface, anomalous scattering is observed in the form of enhanced backscatter, and more importantly, in the form of discrete, bright echoes. The most plausible explanation ...
    • Retrodirective array performance case studies and implications for mine countermeasures 

      Hallaj, I. M.; Kargl, Steven G.; Roy, R. A. (NATO. SACLANTCEN, 1997)
      The use of focused acoustic fields for the mechanical destruction of fluid-borne targets is applied zn. the medical field for the comminution of kidney stones by lithotripsy. Inhomogeneities in the propagation medzum are ...