Title :
Maximum likelihood estimation of the attenuated ultrasound pulse
Author :
Rasmussen, Klaus Bolding
Author_Institution :
Electron. Inst., Tech. Univ. Denmark, Lyngby, Denmark
fDate :
1/1/1994 12:00:00 AM
Abstract :
The attenuated ultrasound pulse is divided into two parts: a stationary basic pulse and a nonstationary attenuation pulse. A standard ARMA model is used for the basic pulse, and a nonstandard ARMA model is derived for the attenuation pulse. The maximum likelihood estimator of the attenuated ultrasound pulse, which includes a maximum likelihood attenuation estimator, is derived. The results of this correspondence are of great importance for deconvolution and attenuation imaging in medical ultrasound
Keywords :
acoustic signal processing; biomedical ultrasonics; maximum likelihood estimation; medical signal processing; stochastic processes; time series; ultrasonic absorption; MLE; attenuated ultrasound pulse; deconvolution; maximum likelihood estimation; medical ultrasound imaging; nonstationary attenuation pulse; stationary basic pulse; Acoustic beams; Acoustic pulses; Acoustic transducers; Attenuation; Biomedical imaging; Biomedical transducers; Deconvolution; Maximum likelihood estimation; Ultrasonic imaging; Ultrasonic transducers;
Journal_Title :
Signal Processing, IEEE Transactions on
