Non-Gaussian versus non-Rayleigh statistical properties of ultrasound echo signals

Author

Chen, Jian-Feng ; Zagzebski, James A. ; Madsen, Ernest L.

Author_Institution

Dept. of Med. Phys., Wisconsin Univ., Madison, WI, USA

Volume

41

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

435

Lastpage

440

Abstract

Parameters expressing the non-Gaussian and the non-Rayleigh properties of ultrasound echo signals are derived for the case of a pulsed transducer insonifying a medium containing randomly distributed scatterers. Both parameters depend on the measurement system, including the transducer field and pulse frequency content, as well as on the medium´s properties. The latter is expressed in terms of the number of scatterers per unit volume and the second and fourth moments of the medium´s scattering functions. A simple relationship between the parameters describing the non-Gaussian and non-Rayleigh properties is derived and verified experimentally.<>

Keywords

acoustic wave scattering; echo; statistical analysis; ultrasonic scattering; ultrasonic transducers; nonGaussian statistical properties; nonRayleigh statistical properties; pulse frequency content; pulsed transducer; randomly distributed scatterers; scatterers per unit volume; scattering functions; transducer field; ultrasound echo signals; Acoustic scattering; Frequency measurement; Pulse measurements; Radio frequency; Rayleigh scattering; Scattering parameters; Time domain analysis; Ultrasonic imaging; Ultrasonic transducers; Ultrasonic variables measurement;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/58.294102

Filename

294102