Modeling the process of the acoustic field scanning and visualization

Author

Bolotina, I.O. ; Makarov, V.S. ; Tsekhanovsky, S.A.

Author_Institution

Tomsk Polytech. Univ., Russia

fYear

2002

Firstpage

57

Lastpage

58

Abstract

Calculation of the resolving capacity based on Rayleigh criterion doesn\´t take into account the peculiarities of psychophysiological sense of visual image of the acoustic signal obtained. To estimate these laws we have performed computer modeling the process of visualization under conditions of scanning with the information presentation in "gray" scale. The brightness as a function of the signal amplitude was supposed to be linear. Algorithm of modeling the visualization process is based on calculating two-dimensional normalized aperture for every point of the control region, on which there is a diagram of the directivity as spot light. Its brightness is related to the value of the directivity envelope diagram (DD) by proportional dependence.

Keywords

acoustic field; acoustic imaging; acoustic field; brightness; computer model; directivity envelope diagram; gray-scale image; resolving capacity; scanning process; two-dimensional normalized aperture algorithm; visualization process; Acoustic diffraction; Current density; Electromigration; Optical films; Optical microscopy; Proximity effect; Signal resolution; Temperature; Transistors; Visualization;

fLanguage

English

Publisher

ieee

Conference_Titel

Modern Technique and Technologies, 2002. MTT 2002. Proceedings of the 8th International Scientific and Practical Conference of Students, Post-graduates and Young Scientists

Print_ISBN

0-7803-7373-1

Type

conf

DOI

10.1109/SPCMTT.2002.1213724

Filename

1213724