A Novel Doppler Chirp Rate and Baseline Estimation Approach in the Time Domain Based on Weighted Local Maximum-Likelihood for an MC-HRWS SAR System.
Shuang-xi ZhangMengdao XingPublished in: IEEE Geosci. Remote. Sens. Lett. (2017)
Keyphrases
- maximum likelihood
- parameter estimation
- frequency domain
- synthetic aperture radar
- sar imaging
- maximum likelihood estimation
- estimation algorithm
- space variant
- log likelihood function
- fourier transform
- radar imaging
- em algorithm
- estimation error
- sar images
- signal processing
- sar imagery
- image reconstruction
- gaussian distribution
- likelihood function
- maximum likelihood estimator
- instantaneous frequency
- expectation maximization
- sar data
- additive noise
- received signal
- feature vectors
- fractional fourier transform
- signal subspace
- automatic target recognition
- spatial domain
- probabilistic model