Title :
Signal reconstruction from a generalised wavelet transform
Author :
Lopes, D.M. ; White, P.R.
Author_Institution :
20/20 Speech Ltd., Malvern, UK
Abstract :
This paper presents a generalisation of the traditional wavelet transform (WT) called the Generalised Wavelet Transform (GWT). This generalisation incorporates a number of linear Time-Frequency Representations (TFRs), including the Short-Time Fourier Transform (ST-FT) and WT. This paper addresses the problem of signal reconstruction from an arbitrary GWT. In order to be robust to modifications of the TFR, a Minimum Least Squares (MLS) approach to signal reconstruction is presented. This results in a method for reconstructing a MLS signal from a modified or altered GWT
Keywords :
signal reconstruction; wavelet transforms; Minimum Least Squares; generalisation; generalised wavelet transform; signal reconstruction; wavelet transform;
Conference_Titel :
Time-scale and Time-Frequency Analysis and Applications (Ref. No. 2000/019), IEE Seminar on
Conference_Location :
London
DOI :
10.1049/ic:20000557