Circularity of the Fractional Fourier Transform and Spectrum Kurtosis for LFM Signal Detection in Gaussian Noise Model.
Guang Kuo LuManlin XiaoPing WeiHong Shu LiaoPublished in: IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2015)
Keyphrases
- noise model
- signal detection
- fractional fourier transform
- gaussian distribution
- gaussian noise
- noisy images
- log polar
- maximum likelihood
- low signal to noise ratio
- noise level
- denoising
- noise removal
- optimization procedure
- expectation maximization
- gaussian mixture model
- image restoration
- signal to noise ratio
- em algorithm
- spatial domain
- low resolution
- higher order
- ground truth