James F. Greenleaf, Aloysius Chu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations


The purpose of this paper is to report experimental results in which multifrequency signals were transmitted, in a plane wave format, through scattering objects and the Rytov method of inverse scattering was utilized to calculate the real and imaginary parts of the refraction index under the assumption that variations in density were absent. The use of multiple frequencies allows subsequent analysis for frequency dependent attenuation and absorption and ultimately may allow for the solution of not only compressibility but density variations. Although in the experiment described by this paper, pseudo random noise was used as the multifrequency source, this technique represents only one of several methods which could be used for generating multiple and simultaneous frequencies.

Original languageEnglish (US)
Title of host publicationAcoustical Imaging
Subtitle of host publicationProceedings of the International Symposium
EditorsM. Kaveh, R.K. Mueller, J.F. Greenleaf
PublisherPlenum Press
Number of pages14
ISBN (Print)0306417170
StatePublished - Dec 1 1984

Publication series

NameAcoustical Imaging: Proceedings of the International Symposium
ISSN (Print)0270-5117

ASJC Scopus subject areas

  • General Engineering


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