A beamforming approach to the self-calibration of phased arrays

Craeye, Christophe;de Lera Acedo, Eloy;Gueuning, Quentin;Brown, Anthony K.
(2020) 14th EuCAP Conference — Location: Copenhagen (Denmark) (15.March.2020)

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Authors
  • Craeye, ChristopheUCLouvain
    Author
  • de Lera Acedo, Eloy
    Author
  • Gueuning, Quentin
    Author
  • Brown, Anthony K.
    Author
Abstract
In this paper, we propose a beamforming method for the calibration of the direction-independent gain of the analog chains of aperture arrays. The gain estimates are obtained by cross-correlating the output voltage of each antenna with a voltage beamformed using the other antennas of the array. When the beamforming weights are equal to the average crosscorrelated power, a relation is drawn with the StEFCal algorithm. An example illustrates this approach for few point sources and a 256-element array.
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Craeye, C., de Lera Acedo, E., Gueuning, Q., & Brown, A. K. (2020). A beamforming approach to the self-calibration of phased arrays. Proceedings of the 14th EuCAP Conference. 14th EuCAP Conference, Copenhagen (Denmark). https://hdl.handle.net/2078.5/223091