Effect of Medium Attenuation on the Asymptotic Eigenvalues of Noise Covariance Matrices.
Ravishankar MenonPeter GerstoftWilliam S. HodgkissPublished in: IEEE Signal Process. Lett. (2013)
Keyphrases
- covariance matrices
- covariance matrix
- maximum likelihood
- vector space
- gaussian distribution
- distance measure
- gaussian mixture model
- multivariate normal
- missing data
- feature vectors
- riemannian metric
- gaussian mixture
- noise level
- noise reduction
- riemannian manifolds
- lie group
- principal component analysis
- sample size
- input data
- positive definite
- log euclidean
- feature space