Abstract
Pulse distortion in a turbulent ocean is investigated using the temporal moment method. The first‐ and second‐order temporal moments are related to the pulse arrival time and pulse width, respectively. Without dispersion in the ocean, the pulse is expected to be delayed and broadened owing to sound‐speed fluctuations. The effects of the vertical sound‐speed profile are included. To simplify the computations, the turbulent ocean is assumed to be statistically homogeneous and isotropic, and to follow a Gaussian correlation function. In computing the temporal moments, the coefficients in a power series expansion of the two‐frequency mutual coherence function have to be evaluated in terms of the relative difference between two wavenumbers. A bilinear sound‐speed profile is used. The propagation range is limited under the assumption that the ray trajectory does not pass the depth of the minimum sound speed. Numerical results show that the effects of random scattering on the arrival time are negligibly small. H...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
