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Eigenvalues and eigenvectors of covariance matrices for signals closely spaced in frequency.
Harry B. Lee
Published in:
IEEE Trans. Signal Process. (1992)
Keyphrases
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covariance matrix
eigenvalues and eigenvectors
covariance matrices
closely spaced
principal component analysis
sample size
gaussian mixture
positive definite
objective function
image processing
contour lines
knn
face recognition
feature extraction