Spatial filtering of RF interference in radio astronomy.

We investigate spatial filtering techniques for interference removal in multichannel radio astronomical observations. The techniques are based on the estimation of the spatial signature vector of the interferer from short-term spatial covariance matrices followed by a subspace projection to remove t...

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Bibliographic Details

Published in:	IEEE Signal processing letters 9, 2 (2002).
Main Author:	Raza, J.
Format:	Article
Language:	English
Subjects:	RF interference. Antenna arrays. Array signal processing. Astronomical data. Averaging. Interference removal. Interference-free covariance matrix. Interferometric radio astronomy. Long-term average. Multichannel radio astronomical observations. Short-term spatial covariance matrices. Spatial filtering. Spatial signature vector estimation. Subspace projection.