Spatial filtering of RF interference in radio astronomy.

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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Dades bibliogràfiques
Publicat a:IEEE Signal processing letters 9, 2 (2002).
Autor principal: Raza, J.
Format: Article
Idioma:English
Matèries:
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.