ESTIMATION OF VARYING ULTRASONIC-ATTENUATION

被引：9

作者：

CLAESSON, I ^{[1
]}

SALOMONSSON, G ^{[1
]}

机构：

[1] UNIV LUND, DIV TELECOMMUN THEORY, S-22007 LUND 7, SWEDEN

来源：

ULTRASOUND IN MEDICINE AND BIOLOGY | 1985年 / 11卷 / 01期

关键词：

D O I：

10.1016/0301-5629(85)90015-8

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A method of estimating the attenuation and its variation was investigated. It is treated as an estimation problem by using modeling techniques known from communication theory. The model includes magnitude and position of specular echoes, a random description of echoes from diffuse reflectors, and a parametric characterization of attenuation. By processing the observed signal only on the time domain, low complexity calculation algorithms are achieved. The method evidently works well on both broad-band and narrow-band signals.

引用

页码：131 / 145

页数：15

共 10 条

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