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Woods Hole Oceanographic Institution

Dezhang Chu
Dezhang Chu's photoDezhang Chu
Guest Investigator
Biology

Contact Information:
Work: 508 289 1111
Fax: +1 508 457-2194
dchu@whoi.edu
Building: Redfield 2-26

Mailing Address:
Mailstop 33
Woods Hole Oceanographic Institution
Woods Hole, MA 02543

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.


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