Optimization techniques applied to the bispectrum of one-dimensional infrared astronomical speckle data

Details Optimization techniques applied to the bispectrum of one-dimensional infrared astronomical speckle data Optimization techniques applied to the bispectrum of one-dimensional infrared astronomical speckle data

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1237..460f&link_type=abstract

IN: Amplitude and intensity spatial interferometry; Proceedings of the Meeting, Tucson, AZ, Feb. 14-16, 1990 (A91-30676 12-89).

Astronomy and Astrophysics

Astronomy

Binary Stars, Infrared Astronomy, Infrared Spectra, Optimization, Speckle Patterns, Algorithms, Astronomical Photography, Computerized Simulation, Infrared Imagery, Least Squares Method

Scientific paper

Optimization techniques are applied to the bispectrum. The Levenberg-Marquardt algorithm for nonlinear least squares is used to determine the parameters of binary stars. The conjugate gradient and conjugate direction algorithms are used to estimate the full set of object phases and moduli. Simulated and observed data are utilized in each optimization.

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