A centered DFT-based discrete fractional Fourier transform and its application to chirp signal parameter estimation.
Ahmet SerbesLutfiye DurakPublished in: EUSIPCO (2009)
Keyphrases
- parameter estimation
- fractional fourier transform
- frequency domain
- log polar
- discrete fourier transform
- fourier transform
- spatial domain
- signal processing
- maximum likelihood
- least squares
- em algorithm
- model selection
- markov random field
- space variant
- parameter estimation algorithm
- non stationary
- expectation maximization
- parameter estimates
- three dimensional
- synthetic aperture radar
- additive noise
- multiscale