coarray

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noun

The mapping of an array into a cogroup.

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Meanings

nouncoarray (plural coarrays)

plural coarrays

  1. mathematicsThe mapping of an array into a cogroup.

    In this paper, we derive a simplified asymptotic mean square error (MSE) expression for the MUSIC algorithm applied to the coarray model, which is applicable even if the source number exceeds the sensor number.

    2016, Mianzhi Wang, Arye Nehorai, “Coarrays, MUSIC, and the Cramér Rao Bound”, in arXiv
  2. computingA variable declared with a codimension.
  3. computingThe set of vector differences between the transmit and receive arrays.

Origin

From co- + array.

Full word history & related roots →
Cite this entry
APA

coarray. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/coarray

MLA

“coarray.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/coarray. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “coarray,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/coarray.

Source: coarray on Wiktionary, CC BY-SA 4.0.