spacer
Woods Hole Oceanographic Institution

Dezhang Chu
Dezhang Chu's photoDezhang Chu
GUEST INVESTIGATOR
BIOLOGY

Contact Information:
Fax: +1 508 457-2194
dchu@whoi.edu

Mailing Address:

Research Interests
Determination of in situ zooplankton acoustical (material) properties, acoustic characterization and classification of aquatic organisms, acoustic scattering by objects with complicated shapes, sub-bottom sediment acoustic tomography, multibeam sonar calibration and signal processing, seafloor characterization and classification, statistical analysis of biological and acoustical data, wave propagation in shallow-water waveguide

Education
B.S. 1982. Electrical Engineering, China University of Geosciences, Wuhan, China.
Ph.D. 1989. Geophysics, University of Wisconsin-Madison, Madison WI, USA.

Selected publications in the past five years:
Chu, D. and Ye, Z., 1999. "A phase-compensated distorted wave Born approximation representation of the bistatic scattering by weakly scattering objects: Application to zooplankton," Journal of the Acoustical Society of America, 106:1732-1743.

Chu, D., P.H. Wiebe, T.K. Stanton, T.R. Hammar, K.W. Doherty, N.J. Copley, J. Zhang, D.B. Reeder, and M.C. Benfield, 2000. "Measurements of the material properties of live marine organisms," Proceedings of the Oceans 2000 MTS/IEEE International Symposium, Sept. 11-14, 2000, Providence, RI, Vol. 3, pp 1963-1967.

Stanton, T. K, Chu, D., and Wiebe P. H., Eastwood, R., and Warren, J., 2000. "Acoustic scattering by benthic and planktonic shelled animals," the Journal of the Acoustical Society of America, 108:535-550.

Chu, D., Wiebe , P. H., and Copley , N., 2000. "Inference of material properties of zooplankton from acoustic and resistivity measurements," ICES Journal of Marine Science, 57:1128-1142.

Stanton T. K. and Chu, D., 2000. "Review and recommendations for modeling of acoustic scattering by fluid-like elongated zooplankton: Euphausiids and copepods," ICES Journal of Marine Science, 57:793-807.

Gorska, N. and D. Chu, 2000. "Some aspect of sound extinction by zooplankton," Proceedings of the fifth European Conference on Underwater Acoustics, Lyon, France, 2000, pp 1467-1472.

Chu, D., Tang, D. J., Austin, T., Hinton, A., and Arthur, R., 2001. "File-Scale acoustic tomographic imaging of shallow water sediments," IEEE OE special issue on High-Frequency Acoustics, 26:70-83.

Warren, J.D. , T.K. Stanton, M.C. Benfield, P.H. Wiebe, D. Chu, M. Sutor, 2001. "In situ measurements of acoustic target strengths of gas-bearing siphonophores," ICES Journal of Marine Science, 58:740-749.

Gorska, N. and D. Chu, 2001. "Some aspect of sound extinction by zooplankton," the Journal of the Acoustical Society of America, 110:2315-2325.

Stanton, T. K., D. Chu, L. V. Martin Traykovski, D. B. Reeder, J. D. Warren, P. H. Wiebe, 2001. "Broadband Acoustic Classification of Individual Zooplankton and Fish: A Review of Recent Work," Proc. of Inst. Acoust. Conf. on Acoustical Oceanography, 9-12 April, 2001, pp. 181-188.

Chu, D. K.C. Baldwin, K.G. Foote, Y. Li , L.A. Mayer, and G.D. Melvin, 2001. "Multibeam sonar calibration: target localization in azimuth," Proc. Oceans' 2001, Nov. 6-8, Honolulu, 4:2506:2510.

Chu, D. K.C. Baldwin, K.G. Foote, Y. Li , L.A. Mayer, and G.D. Melvin, 2001. "Multibeam sonar calibration: removal of static surface reverberation by coherent echo subtraction," Proc. Oceans' 2001, Nov. 6-8, Honolulu, 4:2498:2502.

Andone C. Lavery, Timothy K. Stanton, Duncan M. McGehee, and D. Chu, 2002. "Three-dimensional modeling of acoustic backscatterin from fluid-like zooplankton," the Journal of the Acoustical Society of America, 111:1197-1210.

Warren, J.D., T.K. Stanton, D.E. McGehee, and D. Chu, 2002. "Effect of animal orientation on acoustic estimates of zooplankton properties," IEEE OE 27:130-138.

Chu, D., K.G. Foote, and L. C. Hufnagle, Jr. 2002. "Measurement of multibeam sonar directivity patterns," Proc. MTS/IEEE Oceans' 2002, Oct. 29-31, Biloxi, Mississippi, pp. 1411-1414..

Chu, D., P.H. Wiebe, N.J. Copley, G.A. Lawson, and V.Puvanendran, 2003. "Material properties of North Atlantic cod eggs and early stage larvae and their influence on acoustic scattering," ICES Journal of Marine Science, , 60:508-515

Chu, D., J.M. Jech, and A. Lavery, 2003. "Inference of shape and behavioral information of individual fish from echo trace analysis," Deep-Sea Res. I, 50: 515-527.

Ye, Z. and D. Chu, 2003. "Comment on 'Multiple scattering in a reflecting cavity: Application to fish counting in a tank [J. Acoust. Soc. Am. 109: 2587-2597, 2001]'," the Journal of the Acoustical Society of America, 113: 2978-2979.

Chu, D. and P.H. Wiebe. 2003. "Application of sonar techniques to oceanographic-biological surveys," Current Topics in Acoustical Research, 3: 1-25.

Gorska, N. and D. Chu. 2003. "Echo interference in acoustic backscattering by densely aggregated targets," Proc. of the Seventh European Conference on Underwater Acoustics, ECUA 2004, Delft, Netherlands, 5-8 July, 2004. Edited. by D. G. Simons, Vol. 1, pp. 361 -- 365.

Chu, D., K.G. Foote, L.C. Hufnagle, Jr., T.R. Hammar, S.P. Liberatore, K.C. Baldwin, , L.A. Mayer, and A. McLeod, 2003. "Calibrating a 90-kHz multibeam sonar," Proc. MTS/IEEE Oceans' 2003, Sept.22-26, San Diego, California, pp. 1633-1636.

Jech, J. M, Chu, D., K.G. Foote, T.R. Hammar, and L. C. Hufnagle, Jr., 2003. "Calibrating two scientific echo sounders," Proc. MTS/IEEE Oceans' 2003, Sept.22-26, San Diego, California, pp. 1625-1629.

Jech, J. M, K.G. Foote, D. Chu, and S.P. Liberatore, 2003. "Comparing two scientific echo sounders," Proc. MTS/IEEE Oceans' 2003, Sept.22-26, San Diego, California, pp. 1630-1632.

Stanton, T.K., and D. Chu, 2004. "Non-Rayleigh acoustic scattering characteristics of individual fish and zooplankton," to the IEEE OE 29:260-268.

Stanton, T.K., and D. Chu, 2004. "Importance of acoustic diffraction by the edges of bethic shells," the Journal of the Acoustical Society of America, 116: 239-244.

Feuillade, C., D. Chu, and C.S. Clay, 2004. "Space-time variation of acoustic field scattered from a penetrable isovelocity wedge," the Journal of the Acoustical Society of America, 116: 777-789.

Xiang, N. and D. Chu, 2004. "Fast M-sequence Transform for Quasi-Backscatter Sonar in Fisheries and Zooplanton Survey Applications," Proc 7th International Conference on Signal Processing, ICSP'04, Aug. 31 -- Sep. 4, Beijing, China, 3: 2433-2436.


© Woods Hole Oceanographic Institution
All rights reserved