Robust Beamforming Based on Steering Vector and Covariance Matrix Estimation.
Junhui QianZishu HeTing LiuNuo HuangPublished in: Circuits Syst. Signal Process. (2018)
Keyphrases
- covariance matrix
- estimation error
- covariance matrices
- eigenvalues and eigenvectors
- principal component analysis
- gaussian mixture
- transformation matrix
- sample size
- symmetric matrix
- mahalanobis distance
- correlation matrix
- positive definite
- geometrical interpretation
- vector space
- pseudo inverse
- feature vectors
- maximum likelihood
- evolutionary algorithm
- laplacian matrix
- multivariate gaussian
- class conditional densities
- maximum likelihood estimation
- machine learning
- parameter estimation
- face recognition