Off-Grid DOA Estimation for Noncircular Signals via Block Sparse Representation Using Extended Transformed Nested Array.
Jiawen YuanGong ZhangHenry LeungShaodan MaPublished in: IEEE Signal Process. Lett. (2023)
Keyphrases
- sparse representation
- direction of arrival
- doa estimation
- dictionary learning
- canonical correlation analysis
- signal processing
- sparse coding
- image classification
- face recognition
- image patches
- random projections
- compressive sensing
- joint optimization
- image representation
- blind source separation
- high dimensional data
- test images
- signal subspace
- antenna array
- dimensionality reduction
- negative matrix factorization
- neural network
- sparse coefficients
- sensor array
- estimation error
- probabilistic model
- feature extraction