Acoustic Imaging in Three Dimensions

  • J. F. Martin
  • K. Marsh
  • J. M. Richardson
  • G. Rivera
Conference paper
Part of the NATO ASI Series book series (volume 43)

Abstract

An algorithm and method of implementation are described for obtaining high-resolution, three-dimensional acoustic images of simple objects in air using only a small number of transducer positions. Each transducer position provides a single large bandwidth pulse-echo waveform along a specified incident direction. Probabilistic estimation procedures using the full waveforms are used to reconstruct a three-dimensional image of the objects in the observed volume. Prior information about the physics of the scattering process, the statistical nature of the noise and the acoustic reflectivity of the target object are used to obtain resolution of the order of the smallest wavelength present in the acoustic pulses. Results of both synthetic and experimental tests of the algorithm are presented, as well as a brief description of the experimental apparatus and the algorithm used.

Keywords

Attenuation Convolution Azimuth Arena Penta 

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References

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    J. Krautkramer and H. Krautkramer, “Ultrasonic Testing of Materials,” Springer-Verlag, 1977.Google Scholar
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    R.A. Jarvis, Computer Vol. 15, p. 8 (1982).Google Scholar
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    J.M. Richardson, K.A. Marsh, J.S. Schoenwald and J.F. Martin, “Acoustic Imaging of Solid Objects in Air Using a Small Set of Transducers,” Proc. of the 1984 IEEE Ultrasonics Symposium, p. 831.Google Scholar
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    J.M. Richardson, J.F. Martin, K.A. Marsh and J.S. Schoenwald, “Acoustic Imaging Systems (For Robotic Object Acquisition),” Final Report for DARPA Contract No. N00014 - 84 – C - 0085, 1985.Google Scholar
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    K.A. Marsh, J.M. Richard son, J.F. Martin and J.S. Schoenwald, “Acoustic Imaging in Robotics Using a Small Set of Transducers,” Proc. of 4th Int. Conf. on Robot Vision an1d Sensory Controls, Oct. 1984.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • J. F. Martin
    • 1
  • K. Marsh
    • 1
  • J. M. Richardson
    • 1
  • G. Rivera
    • 1
  1. 1.Rockwell International Science CenterThousand OaksUSA

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