By Topic

A novel approach to narrow-bandwidth signals analysis by wavelet transform

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Laopoulos, T. ; Electron. Lab., Aristotle Univ. of Thessaloniki, Greece ; Michalodimitrakis, N.

A novel technique for the application of the wavelet transform (WT) in noisy narrow-bandwidth systems is presented. The proposed technique for signal processing is, by contrast to other previous approaches, a non-degenerated application of the WT, combined with the non-linear process of thresholding. The application of such processing in a narrow-bandwidth signals field such as ultrasonics, is presented. The results show that a noise-cleaned signal, with altered envelope, but with unaffected timing characteristics is achieved. The accuracy of time-of-flight measurements in ultrasonic systems is considerably improved since zero-crossings of the incoming echo signal retain their positions.

Published in:

Instrumentation and Measurement Technology Conference, 2002. IMTC/2002. Proceedings of the 19th IEEE  (Volume:2 )

Date of Conference: