Dynamic sparse channel estimation over doubly selective channels: Differential simultaneous orthogonal matching pursuit.
Xian ZhangLin GuiQibo QinBo GongPublished in: BMSB (2016)
Keyphrases
- orthogonal matching pursuit
- channel estimation
- signal recovery
- compressed sensing
- frequency selective
- sparse representation
- fading channels
- communication systems
- transform domain
- sparse approximation
- multipath
- compressive sensing
- image reconstruction
- feature selection
- greedy algorithm
- ofdm system
- bit error rate
- random projections
- natural images
- estimation algorithm
- sparse coding
- wireless channels
- noise model
- linear combination
- image representation
- image quality
- multiscale
- feature extraction
- image processing