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- since 1996 -

Vallen-Systeme GmbH
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Technical Discussions
Omar Aly
Omar Aly
01:18 Jul-19-2004
Spread Spectrum Ultrasonic

If any one have information about Spread Spectrum Ultrasonic please send it to me.


 
 Reply 
 
Philippe Rubbers
Engineering
SCM, South Africa, Joined Nov 1998, 22

Philippe Rubbers

Engineering
SCM,
South Africa,
Joined Nov 1998
22
07:27 Jul-19-2004
Re: Spread Spectrum Ultrasonic
----------- Start Original Message -----------
: If any one have information about Spread Spectrum Ultrasonic please send it to me.
------------ End Original Message ------------

There are a number of approaches to Spread Spectrum Processing in the literature. If you do a search on NDT.net for Split Spectrum Processing, a few papers will also pop up.
There are also papers on Complex Plane Split Spectrum (CSSP) Processing which have a number of additional advantages, such as retained amplitude linearity, and further improvements in S/N ratios (among other).

A mathematical simulation of CSSP should become available on NDT.net (shareware) shortly. This software will be an extension of the currently shared diffraction simulation software (CSSP_Diff_Sim).
The link to the diffraction simulation software is as follows:
http://www.ndt.net/article/v09n04/rubbers/rubbers.htm
(click on the download button on the top right hand side)




 
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