GENERALIZED COHERENCE.

Herbert Gish, Douglas Cochran

Research output: Chapter in Book/Report/Conference proceedingConference contribution

48 Scopus citations

Abstract

The authors introduce a test for detecting the presence of a common signal on M noisy channels that generalizes a popular technique using the magnitude-squared coherence (MSC) estimate for detecting a common signal on two channels. The basis of this test is the generalized coherence estimate, a statistic involving the normalized M multiplied by M Gram matrix determinant, which reduces to the MSC estimate for M equals 2. The distribution of the generalized coherence estimate is derived under the assumptions of independent noise and no common signal on the M channels.

Original languageEnglish (US)
Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
PublisherIEEE
Pages2745-2748
Number of pages4
Publication statusPublished - 1988
Externally publishedYes

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ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering
  • Acoustics and Ultrasonics

Cite this

Gish, H., & Cochran, D. (1988). GENERALIZED COHERENCE. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (pp. 2745-2748). IEEE.