Limited-Angle Planar Diffraction Tomography Using Optimal Incident Angles

  • C. H. Chen
  • A. Meyyappa
  • G. Wade
Part of the Acoustical Imaging book series (ACIM, volume 17)

Abstract

We have shown in an earlier paper that the expected mean-sguares error for a planar imaging system using optimal incident angles is lower than that for the uniformly-spaced incident angles when a full 180° range of incident angles is available.

In this paper, we present an analysis of the expected mean-sguares error for the case when the range of the incident angles is small than 180°. The range of incident angles over which useful projection data are not availabe is employed as a parameter. A first-order solution and computer simulation are presented. They both show that the expected mean-sguares error increases as the range of incident angles decreases.

Keywords

Attenuation Propa Acoustics 

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References

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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • C. H. Chen
    • 1
  • A. Meyyappa
    • 2
  • G. Wade
    • 2
  1. 1.Department of Electrical EngineeringNational Cheng Rung UniversityTainanTaiwan
  2. 2.Department of Electrical and Computer EngineeringUniversity of CaliforniaSanta BarbaraUSA

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