January 2000 VOLUME 25 NUMBER 1 IJOEDY(ISSN 0364-9059)

NONTECHNICAL CONTENT
Front cover and table of contents
Back cover

EDITORIAL
James F. Lynch Editorial 1

SPECIAL ISSUE PAPERS
    Underwater acoustic communications
Daniel B. Kilfoyle, James C. Preisig, and Milica Stojanovic Guest editorial special issue on underwater acoustic communications 2
Daniel B. Kilfoyle and Arthur B. Baggeroer The state of the art in underwater acoustic telemetry 4
M. Dale Green and Joseph A. Rice Channel-tolerant FH-MFSK acoustic signaling for undersea communications and networks 28
Lester R. LeBlanc and Pierre-Philippe J. Beaujean Spatio-temporal processing of coherent acoustic communication data in shallow water 40
Bayan S. Sharif, Jeff Neasham, Oliver R. Hinton, and Alan E. Adams A computationally efficient Doppler compensation system for underwater acoustic communications 52
Trym H. Eggen, Arthur B. Baggeroer, and James  C. Preisig Communication over Doppler spread channels--Part I: Channel and receiver presentation 62
Ethem M. Sozer, Milica Stojanovic, and John G. Proakis Underwater acoustic networks 72
Nicholas M. Carbone and William S. Hodgkiss Effects of tidally driven temperature fluctuations on shallow-water acoustic communications at 18 kHz 84

GUEST EDITORIAL
    Underwater technology '98
Hisaaki Maeda, Tamaki Ura, Robert Wernli, and Anthony J. Healey Guest editorial special issue on underwater technology '98 95

SPECIAL ISSUE PAPERS
Tatsuro Akiba and Yoshimi Kakui Design and testing of an underwater microscope and image processing system for the study of zooplankton distribution 97
Ryusuke Imai, Yasuhiro Hashimoto, Ken Kikuchi, and Shoji Fujii High-resolution beamforming by the Wigner-Ville distribution method 105
Junzo Kasahara, Yuichi Shirasaki, and Hiroyasu Momma Multidisciplinary geophysical measurements on the ocean floor using decommissioned submarine cables: VENUS project 111
Naomi Kato Control performance in the horizontal plane of a fish robot with mechanical pectoral fins 121
Wataru Koterayama, Satoru Yamaguchi, Takashi Yokobiki, Jong-Hwan Yoon, and Hideaki Hase Space-continuous measurements on ocean current and chemical properties with the intelligent towed vehicle "Flying Fish" 130
Shiuh-Kuang Yang and Shao-Yi Hsia Chiral composites as underwater acoustic attenuators 139

REGULAR ISSUE PAPERS
Ralf Bachmayer, Louis L. Whitcomb, and Mark. A. Grosenbaugh An accurate four-quadrant nonlinear dynamical model for marine thrusters: Theory and experimental validation 146
L. Neil Frazer and Eduardo Mercado III A sonar model for humpback whale song 160
Klaus-Werner Gurgel and Heinz-Hermann Essen On the performance of a shipborne current mapping HF radar 183
Chunhua Yuan, Mahmood R. Azimi-Sadjadi, JoEllen Wilbur, and Gerald J. Dobeck Underwater target detection using multichannel subband adaptive filtering and high-order correlation schemes 192