Advertisement

Increasing Frame Rate of Limited Difraction Imaging System with Code Excitations

  • Jian-yu Lu
  • Jing Wang
  • Hu Peng
  • Jiqi Cheng
Part of the Acoustical Imaging book series (ACIM, volume 26)

Abstract

Code excitations have been applied to the newly developed two-way dynamic focusing imaging method using limited diffraction array beams. Image frame rate is increased several folds. Computer simulations with both point scatterers and objects consisting of random scatterers were performed to demonstrate the efficacy of the method.

Keywords

Limited Diffraction Point Scatterer Array Beam Golay Code High Autocorrelation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    J. A. Stratton, Electromagnetic Theory. New York and London: McGraw-Hill Book Company1941, Page 356.Google Scholar
  2. 2.
    Jian-yu Lu, “2D and 3D high frame rate imaging with limited diffraction beams,”IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 44, no. 4, pp. 839–856, July, 1997.CrossRefGoogle Scholar
  3. 3.
    Jian-yu Lu, “Experimental study of high frame rate imaging with limited diffraction beams,”IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 45, no. 1, pp. 84–97, January, 1998.PubMedCrossRefGoogle Scholar
  4. 4.
    Jian-yu Lu, “Transmit-receive dynamic focusing with limited diffraction beams,” in IEEE 1997 Ultrasonics Symposium Proceedings, 97CH36118, vol. 2, pp. 1543–15461997. (ISSN: 1051-0117)Google Scholar
  5. 5.
    F. S. Foster, J. D. Larson, M. K. Mason, T. S. Shoup, G. Nelson, and H. Yoshida, “Development of a 12 elemnet annular array transducer for realtime ultrasound imaging,”Ultrason. Med. Biol., vol. 15, no. 7, pp. 649–6591989.CrossRefGoogle Scholar
  6. 6.
    Matthew O’Donnell, “Coded excitation system for improving the penetration of real-time phased-array imaging systems”, in IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 39, no. 3, pp. 341–351, May, 1992.PubMedCrossRefGoogle Scholar
  7. 7.
    Richard Y. Chiao, Lewis J. Tomas, and Seth D. Silverstein, “Sparse array imaging with spatially-encoded transmits”, in IEEE 1997 Ultrasonics Symposium Proceedings, pp. 1679–16821997.Google Scholar
  8. 8.
    Jian-yu Lu, “Limited diffraction array beams,”International Journal of Imaging System and Technology, vol. 8, no. 1, pp. 126–136, January, 1997. (ISSN: 0899-9457)CrossRefGoogle Scholar
  9. 9.
    Jian-yu Lu and J. F. Greenleaf, “Nondiffracting X waves — exact solutions to free-space scalar wave equation and their finite aperture realizations,”IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 39, no. 1, pp. 19–31, January, 1992.PubMedCrossRefGoogle Scholar
  10. 10.
    Jian-yu Lu and J. F. Greenleaf, “Experimental verification of nondiffracting X waves,”IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 39, no. 3, pp. 441–446, May, 1992.PubMedCrossRefGoogle Scholar
  11. 11.
    R. Bracewell, The Fourier Transform and its Applications. New York, NY: McGraw-Hill Book Company1965chs. 4 and 6.Google Scholar

Copyright information

© Springer Science+Business Media New York 2002

Authors and Affiliations

  • Jian-yu Lu
    • 1
  • Jing Wang
    • 1
  • Hu Peng
    • 1
  • Jiqi Cheng
    • 1
  1. 1.Ultrasound Laboratory, Department of BioengineeringThe University of ToledoToledo, OhioUSA

Personalised recommendations