Adaptive suppression of RFI and its effect on radio-astronomical image formation

A. Leshem*, A. J. Van Der Veen

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

Radio-astronomical observations are increasingly contaminated by interference, and suppression techniques become essential. A powerful candidate for interference mitigation is adaptive spatial filtering. We study the effect of spatial filtering techniques on radio astronomical imaging. Current deconvolution procedures such as CLEAN are shown to be unsuitable to spatially filtered data, and the necessary corrections are derived. To that end, we reformulate the imaging (deconvolution/calibration) process as a sequential estimation of the locations of astronomical sources.

Original languageEnglish
Pages616-619
Number of pages4
StatePublished - 2001
Externally publishedYes
EventIEEE International Conference on Image Processing (ICIP) - Thessaloniki, Greece
Duration: 7 Oct 200110 Oct 2001

Conference

ConferenceIEEE International Conference on Image Processing (ICIP)
Country/TerritoryGreece
CityThessaloniki
Period7/10/0110/10/01

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