Blind noise variance and SNR estimation for OFDM systems based on information theoretic criteria.
Kun WangXianda ZhangPublished in: Signal Process. (2010)
Keyphrases
- information theoretic
- ofdm system
- estimation algorithm
- channel estimation
- noise variance
- mutual information
- noisy images
- wireless communication
- correlation coefficient
- signal to noise ratio
- bit error rate
- multipath
- maximum likelihood
- regularization parameter
- gaussian noise
- wiener filter
- noise level
- noise reduction
- image restoration
- computationally efficient
- closed form
- image noise
- wavelet transform
- image registration
- natural images
- computer simulation
- image analysis