DOA Estimation Using Sparse Representation of Beamspace and Element-Space Covariance Differencing.
Fujia XuAifei LiuShengguo ShiSong LiYing LiPublished in: Circuits Syst. Signal Process. (2022)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- doa estimation
- image patches
- compressive sensing
- signal processing
- face recognition
- image classification
- random projections
- compressed sensing
- high dimensional data
- dimensionality reduction
- joint optimization
- image representation
- low dimensional
- sparse coefficients
- negative matrix factorization
- knn
- image processing
- canonical correlation analysis
- data sets