Direction-of-Arrival Estimation Based on Sparse Representation of Fourth-Order Cumulants.
Chuanxi XingSaimeng DongZhiliang WanPublished in: IEEE Access (2023)
Keyphrases
- fourth order
- sparse representation
- signal subspace
- direction of arrival
- estimation error
- doa estimation
- noise removal
- high order
- sparse coding
- partial differential equations
- image interpolation
- face recognition
- image classification
- anisotropic diffusion
- image patches
- random projections
- signal processing
- nonlinear diffusion
- image representation
- high dimensional data
- dimensionality reduction
- negative matrix factorization
- higher order
- image enhancement
- canonical correlation analysis
- data sets
- covariance matrix
- edge detection
- blind source separation
- diffusion equation
- nearest neighbor
- feature extraction