Source localization and inversion in the presence of internal waves

It is often possible to localize an acoustic source in a medium with environmental uncertainties by including environmental parameters in the search space [J. Acoust. Soc. Am. 90, 1410–1422 (1991)]. This approach has recently been applied to problems involving stochastic environmental parameters [J. Acoust. Soc. Am. 114, 2401 (2003)]. The parameters of the Garrett–Munk spectrum were held fixed, and the source was localized by generating replica fields for various realizations of the internal wave field. In the present work, source localization simulations are performed with the parameters of the Garrett–Munk spectrum included in the parameter space. The possibility of solving an inverse problem to estimate the internal wave parameters is also considered. [Work supported by the ONR.]