The NATO Advanced Research Workshop on Issues in Acoustic Signal/Image
Processing and Recognition was held August 5-9, 1982 at the Cappuccini
complex in San Miniato Italy. The Workshop was primarily concerned with
the underwater acoustic signal processing and seismic signal analysis
and a major effort was made to link these topics with pattern
recognition, i ge processing and artificial intelligence. Major issues
and new approaches in these interrelated areas were closely examined in
the Workshop. In addition to paper presentations three discussion
sessions were held on! (1) spectral analysis in underwater acoustics,
(2) seismic wave propaga- tion, seismic imaging and migration, and
seismic inversion, and (3) unresolved issues and future directions. This
Proceedings volume includes most presentations made at the Workshop. The
publication, like the meeting itself, is unique in the sense that it
provides exten- sive interactions among the closely related areas stated
above. Such interactions which usually result in the integration of
different systems or approaches are certainly much needed to achieve
some performance breakthrough while individual systems or approaches
reach their performance limit. I am grateful to all participants for
their active participation that makes the Workshop very productive, and
to Dr. Lewis J. Lloyd and Dr. Ralph Goodman for their help to arrange an
informative visit to the SACLANT ASW Research Centre for the Workshop
participants. I am confident that this publication will be equally
produc- tive to report important current research results and
near-future research activity particularly in underwater acoustic signal
processing.