Search
Now showing items 1-3 of 3
Impulse response of a layered bottom
(NATO. SACLANTCEN, 1967/01)
Numerical methods are used for the Fourier inversion of the frequency-dependent loss transfer function. Because of the non-zero finite values of the integrand for an infinite high frequency, the asymptotic value is subtracted ...
The sea surface as a random filter for underwater sound waves
(NATO. SACLANTCEN, 1974/06)
In this dissertation the phenomenon of scattering and reflection of underwater sound waves from the sea surface is studied by considering the surface sound channel as a random, time-dependent filter. This filter can be ...