ASA 128th Meeting - Austin, Texas - 1994 Nov 28 .. Dec 02

3pUW2. Exploiting source dynamics in matched-field processing.

Zoi-Heleni Michalopoulou

Michael B. Porter

Dept. of Math. and Ctr. for Appl. Math. and Statistics, New Jersey Inst. of Technol., Newark, NJ 07102

Matched-field processing is typically considered as a static problem of locating a fixed, narrow-band source. However, the source does not randomly jump from point to point during the course of time and much can be gained by exploiting this extra information. Various schemes have been proposed in the past for treating source motion. A key problem is that even when the source motion is uniform the source may appear to have a nonuniform speed due to environmental mismatch. We show that by allowing for these random perturbations in source motion, an improvement in the localization results is obtained.