Complementary Field Method For Holographic Interferometric Reconstruction Of Three-Dimensional Flow Fields In High-Speed Aerodynamics

Soyoung S. Cha; Hongwei Sun

doi:10.1117/12.948686

1 February 1989 Complementary Field Method For Holographic Interferometric Reconstruction Of Three-Dimensional Flow Fields In High-Speed Aerodynamics

Soyoung S. Cha, Hongwei Sun

Author Affiliations +

Proceedings Volume 0981, High Speed Photography, Videography, and Photonics VI; (1989) https://doi.org/10.1117/12.948686
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

Abstract

The complementary field method has been applied to interferometric tomographic reconstruction of high speed aerodynamic flows involving a shock. It is based on the reconstruction of the complementary field, which is the difference between the object field to be reconstructed and its estimate. The method is iterative and incorporates a priori information. This study demonstrates advantages of the method in alleviating the difficiencies associated with computational reconstructors and measured data. Substantial reconstruction improvement is obtained, especially near a shock when its position is utilized as a priori information. Under the test conditions, convergence is rapid.

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Soyoung S. Cha and Hongwei Sun "Complementary Field Method For Holographic Interferometric Reconstruction Of Three-Dimensional Flow Fields In High-Speed Aerodynamics", Proc. SPIE 0981, High Speed Photography, Videography, and Photonics VI, (1 February 1989); https://doi.org/10.1117/12.948686

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