Structured Covariance Matrix Estimation for Noise-Type Radars.
David LuongBhashyam BalajiSreeraman RajanPublished in: IEEE Trans. Geosci. Remote. Sens. (2022)
Keyphrases
- covariance matrix
- estimation error
- covariance matrices
- sample size
- mahalanobis distance
- principal component analysis
- noise model
- geometrical interpretation
- eigendecomposition
- pseudo inverse
- positive definite
- eigenvalues and eigenvectors
- transformation matrix
- multivariate gaussian
- class conditional densities
- objective function
- parameter estimation
- computational complexity
- image noise
- image processing
- mahalanobis metric
- gaussian noise
- maximum likelihood estimation
- gaussian mixture
- noise level
- noisy images
- special case
- evolutionary algorithm
- search algorithm