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Subarray Processing for Projection-based RFI Mitigation in Radio Astronomical Interferometers

  • Authors: Mitchell C. Burnett, Brian D. Jeffs, Richard A. Black, and Karl F. Warnick

2018 The Astronomical Journal 155 146.

  • Provider: AAS Journals

Caption: Figure 1.

Simple imaging scenario for a synthesis imaging array. Given azimuth and elevation angles direction cosines can be used to calculate a propagation vector ﹩{\boldsymbol{\rho }}﹩ for a signal of interest (SOI) and interferer(s). The array has been co-phased with inserted time delays to image a celestial SOI. Interferers corrupt the visibilities for the SOI and introduce artifacts in the resulting radio image.

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