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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 8, Iss. 1 — Jan. 1, 1991
  • pp: 134–140

Least-squares Fourier phase estimation from the modulo 2π bispectrum phase

Christopher A. Haniff  »View Author Affiliations

JOSA A, Vol. 8, Issue 1, pp. 134-140 (1991)

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The recovery of Fourier phases from measurements of the bispectrum occupies a vital role in many astronomical speckle imaging schemes. In a recent paper [ J. Opt. Soc. Am. A 7, 14 ( 1990)] it was suggested that a least-squares solution to this problem must fail if the bispectrum phase is known only modulo 2π. Here an alternative nonlinear least-squares algorithm is presented that differs from the linear method discussed in the aforementioned paper and that permits the fitting of Fourier phases directly to modulo 2π measurements of the bispectrum phase, thus eliminating any need for phase unwrapping. Numerical simulations of this method confirm that it is reliable and robust in the presence of noise and verify its enhanced performance when compared with a linear least-squares method that includes the unwrapping of the bispectral phase before Fourier phase retrieval.

© 1991 Optical Society of America

Original Manuscript: April 25, 1990
Manuscript Accepted: August 14, 1990
Published: January 1, 1991

Christopher A. Haniff, "Least-squares Fourier phase estimation from the modulo 2π bispectrum phase," J. Opt. Soc. Am. A 8, 134-140 (1991)

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