The possibility of using the maximum-entropy method in ultrasonic nondestructive testing for increasing the resolution of echo signals

被引：1

作者：

Bazulin, A. E.

Bazulin, E. G.

机构：

[1] Kurchatov Inst, Russian Res Ctr, Moscow 123182, Russia

[2] OOO Sci & Prod Ctr Ekho, Moscow 123182, Russia

来源：

RUSSIAN JOURNAL OF NONDESTRUCTIVE TESTING | 2006年 / 42卷 / 09期

关键词：

Maximum Entropy; Nondestructive Test; Aluminum Specimen; Probe Angle; Echo Signal;

D O I：

10.1134/S1061830906090014

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The problem of deconvoluting echo signals via regularization according to the maximum entropy method followed by the reconstruction of 2D images via the Fourier transformation synthetic aperture focusing technique (FT-SAFT) is considered. Numerical and experimental simulations have been performed. The possibility of improving the ray resolution of echo signals and reducing the speckle-noise level is demonstrated. The results obtained are compared to the results of constructing an AR model of the spectrum of echo signals.

引用

页码：559 / 577

页数：19