Analysis of the RATAN-600 radiotelescope antenna with a multilevel Physical Optics algorithm

Christine Letrou; Vladimir Khaikin; Amir Boag

doi:10.1016/j.crhy.2011.10.011

Analysis of the RATAN-600 radiotelescope antenna with a multilevel Physical Optics algorithm

Christine Letrou
, Vladimir Khaikin
, Amir Boag

Special Astrophysical Observatory, Russian Academy of Sciences
Tel Aviv University

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

The RATAN-600 antenna is a flexible multireflector system composed of reflectors of very large dimensions. An extended system, with improved performance in the millimetric range, includes a focal receiver array. Accurate electromagnetic analysis of such a system, and simulation of three-dimensional (3D) patterns, represents a substantial computational challenge. A fast Physical Optics method based on a multilevel subdivision of the surfaces of integration is proposed to address this problem. This method allows to perform Physical Optics integrals with a computational complexity comparable to that of the Fast Fourier Transform. The algorithm and initial numerical results of its application to the RATAN-600 antenna system are presented.

langue originale	Anglais
Pages (de - à)	38-45
Nombre de pages	8
journal	Comptes Rendus Physique
Volume	13
Numéro de publication	1
Les DOIs	https://doi.org/10.1016/j.crhy.2011.10.011
état	Publié - 1 janv. 2012

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abstract = "The RATAN-600 antenna is a flexible multireflector system composed of reflectors of very large dimensions. An extended system, with improved performance in the millimetric range, includes a focal receiver array. Accurate electromagnetic analysis of such a system, and simulation of three-dimensional (3D) patterns, represents a substantial computational challenge. A fast Physical Optics method based on a multilevel subdivision of the surfaces of integration is proposed to address this problem. This method allows to perform Physical Optics integrals with a computational complexity comparable to that of the Fast Fourier Transform. The algorithm and initial numerical results of its application to the RATAN-600 antenna system are presented.",

keywords = "Multilevel algorithm, Multireflector antenna, Physical Optics, Radiotelescope",

author = "Christine Letrou and Vladimir Khaikin and Amir Boag",

year = "2012",

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doi = "10.1016/j.crhy.2011.10.011",

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AU - Khaikin, Vladimir

AU - Boag, Amir

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N2 - The RATAN-600 antenna is a flexible multireflector system composed of reflectors of very large dimensions. An extended system, with improved performance in the millimetric range, includes a focal receiver array. Accurate electromagnetic analysis of such a system, and simulation of three-dimensional (3D) patterns, represents a substantial computational challenge. A fast Physical Optics method based on a multilevel subdivision of the surfaces of integration is proposed to address this problem. This method allows to perform Physical Optics integrals with a computational complexity comparable to that of the Fast Fourier Transform. The algorithm and initial numerical results of its application to the RATAN-600 antenna system are presented.

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KW - Multilevel algorithm

KW - Multireflector antenna

KW - Physical Optics

KW - Radiotelescope

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JF - Comptes Rendus Physique

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Analysis of the RATAN-600 radiotelescope antenna with a multilevel Physical Optics algorithm

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