A blind deconvolution method for attenuative materials based on asymmetrical Gaussian model.During propagation in attenuative materials, ultrasonic waves are distorted by frequency-dependent acoustic attenuation.  As a result, reference signals for blind deconvolution in attenuative materials are asymmetrical and should be accurately estimated by considering attenuation.  In this study, an asymmetrical Gaussian model is established to estimate the reference signals from these materials, and a blind deconvolution method based on this model is proposed.  Upon establishing the model, the reference signal for blind deconvolution is determined via maximum likelihood estimation, and the blind deconvolution is implemented with an orthogonal matching pursuit algorithm.  The proposed blind deconvolution method is applied to the A-scan signal and B-scan image from attenuative materials. 
blind deconvolution
A blind deconvolution method for attenuative materials based on asymmetrical Gaussian model.During propagation in attenuative materials, ultrasonic waves are distorted by frequency-dependent acoustic attenuation.  In this study, an asymmetrical Gaussian model is established to estimate the reference signals from these materials, and a blind deconvolution method based on this model is proposed. 
asymmetrical Gaussian model
Upon establishing the model, the reference signal for blind deconvolution is determined via maximum likelihood estimation, and the blind deconvolution is implemented with an orthogonal matching pursuit algorithm. 
orthogonal matching pursuit algorithm