ASA 125th Meeting Ottawa 1993 May

5aAO4. Matched-mode processing (MMP) vertical slice tomography.

E. C. Shang

Y. Y. Wang

CIRES, Univ. of Colorado/NOAA/Wave Propagation Lab., 325 Broadway, Boulder, CO 80303

For a practical global scale ocean acoustic thermometry system, information given by vertical slice tomography might be the most fundamental outcome because 3-D mapping is difficult in such a case. Usually, vertical slice modal tomography gives only the ``range-averaged'' information. Moreover, the ``range-averaged'' information of sound-speed profile or temperature profile has bias due to the nonlinearity of acoustic travel time. In this talk, the bias has been discussed and the possibility of estimation range-dependent information by using a ``differential'' MMP vertical slice tomography scheme is investigated. Some numerical simulations will be presented. [Work supported by DARPA and NOAA.]