Parameter Estimation of Multicomponent Chirp Signals via Sparse Representation.
Jinku GuoHongxing ZouXiaojun YangGuangbin LiuPublished in: IEEE Trans. Aerosp. Electron. Syst. (2011)
Keyphrases
- parameter estimation
- sparse representation
- fractional fourier transform
- signal processing
- fourier transform
- instantaneous frequency
- dictionary learning
- log polar
- image patches
- sparse coding
- least squares
- model selection
- maximum likelihood
- markov random field
- em algorithm
- image classification
- compressive sensing
- frequency domain
- face recognition
- expectation maximization
- random projections
- joint optimization
- parameter estimation algorithm
- sparse signal representation
- object tracking
- random fields
- image processing
- high dimensional data
- dimensionality reduction
- pattern recognition
- approximate inference
- frequency modulation
- image segmentation
- feature vectors
- pairwise
- machine learning