Robust beamforming via alternating iteratively estimating the steering vector and interference-plus-noise covariance matrix.
Zhiwei YangPan ZhangGuisheng LiaoChongdi DuanHuajian XuShun HePublished in: Digit. Signal Process. (2020)
Keyphrases
- covariance matrix
- estimation error
- covariance matrices
- eigenvalues and eigenvectors
- principal component analysis
- sample size
- image noise
- symmetric matrix
- gaussian mixture
- transformation matrix
- feature vectors
- correlation matrix
- mahalanobis distance
- eigendecomposition
- positive definite
- geometrical interpretation
- noise level
- vector space
- noisy environments
- missing data
- multivariate gaussian
- noise model
- multipath
- signal to noise ratio
- pseudo inverse
- high dimensional
- objective function
- image processing