April 1994 VOLUME 19 NUMBER 2 IJOEDY(ISSN 0364-9059)

NONTECHNICAL CONTENT
Front cover and table of contents
Back cover

PAPERS
Gerald F. Appell, Thomas N. Mero, Thomas D. Bethem, and Geoffrey W. French The development of a real-time port information system 149
David Brady and Josko A. Catipovic Adaptive multiuser detection for underwater acoustical channels 158
Han-Yang Chen and I-Tai Lu Localization of a broadband source using a matched-mode procedure in the time-frequency domain 166
Randolf F. Follett and J. Patrick Donohoe A wideband, high-resolution, low-probability-of-detection FFT beamformer 175
Kiho Kim, Sung Bae Kim, Edward J. Powers, Richard W. Miksad, and F. Joseph Fischer Adaptive second-order Volterra filtering and its application to second-order drift phenomena 183
Dan Madurasinghe and E. O. Tuck The induced electromagnetic field associated with submerged moving bodies in an unstratified conducting fluid 193
Jorge C. Novarini and Jerald W. Caruthers The partition wavenumber in acoustic backscattering from a two-scale rough surface described by a power-law spectrum 200
E. C. Shang and Y. Y. Wang Tomographic inversion of the El Niño profile by using a matched-mode processing (MMP) method 208
W. Kenneth Stewart, Min Jiang, and Martin Marra A neural network approach to classification of sidescan sonar imagery from a midocean ridge area 214
David N. Swingler Narrowband line-array beamforming: Practically achievable resolution limit of unbiased estimators 225
Qian Wen and James A. Ritcey Spatial diversity equalization applied to underwater communications 227
Lawrence J. Ziomek Sound-pressure level calculations using the RRA algorithm for depth-dependent speeds of sound valid at turning points and focal points 242