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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 3.

Extent of RFI decorrelation for an antenna pair at different processing bandwidths. The signal is arriving endfire for a maximum projected baseline length. In general, the correlation varies slowly for narrowband channel processing. As the bandwidth increases, the correlations decreases more rapidly. With a dense core on the ngVLA, there will be significant correlation potentially corrupting images without mitigation.

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