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A statistical technique for processing radio interferometer dataThe output of a radio interferometer is the Fourier transform of the object under investigation. Due to the limited coverage of the Fourier plane, the reconstruction of the image of the source is blurred by the beam of the synthesized array. A maximum-likelihood processing technique is described which uses the statistical properties of the received noise-like signals. This technique has been used extensively in the processing of large-aperture seismic arrays. This inversion method results in a synthesized beam that is more uniform, has lower sidelobes, and higher resolution than the normal Fourier transform methods. The maximum-likelihood method algorithm was applied successfully to very long baseline and short baseline interferometric data.
Document ID
19750034485
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Papadopoulos, G. D.
(Massachusetts, University Amherst, Mass., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1975
Publication Information
Publication: IEEE Transactions on Antennas and Propagation
Volume: AP-23
Subject Category
Astronomy
Accession Number
75A18557
Distribution Limits
Public
Copyright
Other

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