Joint 2D direction of arrival estimation using a sparse representation of cross covariance matrix.
Wei CuiShuxu GuoYunpeng LiPublished in: IET Commun. (2018)
Keyphrases
- sparse representation
- covariance matrix
- signal subspace
- correlation matrix
- direction of arrival
- doa estimation
- estimation error
- sparse coding
- image classification
- principal component analysis
- reconstruction error
- positive definite
- image patches
- face recognition
- negative matrix factorization
- dimensionality reduction
- canonical correlation analysis
- signal processing
- high dimensional data
- image representation
- sample size
- principal components
- singular value decomposition
- feature representation
- objective function
- random projections
- pseudo inverse
- data analysis
- blind source separation
- unsupervised learning
- similarity measure
- feature extraction
- neural network