Document Type

Conference Proceeding

Publication Date

2004

Journal or Book Title

AIP Conference Proceedings

Volume

700

First Page

628

Last Page

635

DOI

10.1063/1.1711680

Abstract

We present methods for detecting NDE defect signals in correlated noise having unknown covariance. The proposed detectors are derived using the statistical theory of generalized likelihood ratio (GLR) tests and multivariate analysis of variance (MANOVA). We consider both real and complex data models. To allow accurate estimation of the noise covariance, we incorporate secondary data containing only noise into detector design. Probability distributions of the GLR test statistics are derived under the null hypothesis, i.e. assuming that the signal is absent, and used for detector design. We apply the proposed methods to simulated and experimental data and demonstrate their superior performance compared with the detectors that neglect noise correlation.

Comments

The following article appeared in AIP Conference Proceedings 700 (2004): 628 and may be found at doi:10.1063/1.1711680.

Rights

Copyright 2004 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Copyright Owner

American Institute of Physics

Language

en

File Format

application/pdf

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