Title :
Translation-invariant data visualization with orthogonal discrete wavelets
Author :
Scholl, David J.
Author_Institution :
Ford Motor Co., Dearborn, MI, USA
fDate :
7/1/1998 12:00:00 AM
Abstract :
Orthogonal discrete wavelet transforms can be made translation-invariant by adding redundant wavelet coefficients through repeated shifting operations. Orthogonality is lost, but isometry and compact time support can be preserved. The practical application to data visualization of scalograms based on such transforms is discussed and illustrated with measured transient signals
Keywords :
data visualisation; spectral analysis; transient analysis; compact time support; isometry; orthogonal discrete wavelets; redundant wavelet coefficients; repeated shifting operations; scalograms; transient signals; translation-invariant data visualization; Bandwidth; Chirp; Data visualization; Discrete transforms; Discrete wavelet transforms; Frequency; Numerical analysis; Signal resolution; Spectrogram; Wavelet coefficients;
Journal_Title :
Signal Processing, IEEE Transactions on
