Robust MVDR beamforming based on covariance matrix reconstruction.
Pengcheng MuDan LiQinye YinWei GuoPublished in: Sci. China Inf. Sci. (2013)
Keyphrases
- covariance matrix
- covariance matrices
- estimation error
- principal component analysis
- positive definite
- mahalanobis distance
- pseudo inverse
- geometrical interpretation
- sample size
- multivariate gaussian
- eigenvalues and eigenvectors
- transformation matrix
- objective function
- gaussian mixture
- eigendecomposition
- minimum variance
- correlation matrix
- image reconstruction
- special case