Title :
Authors´ Reply to Comments on “The Inverse S-Transform in Filters With Time-Frequency Localization”
Author :
Schimmel, M. ; Gallart, J.
Author_Institution :
Inst. of Earth Sci. Jaume Almera - CSIC, Barcelona
Abstract :
Pinnegar points in his comment to a mistake in our paper on the inverse S-transform. It seems, in fact, that the error should mainly be attributed to the discretization of the S-transform, not to our inverse S-transform. Pinnegar bases his approach on the discrete S-transform by using its representation in the frequency domain. It is shown in an accompanying paper by Simon that there are differences whether one discretizes the S-transform using the time-domain or the frequency-domain expression. As a consequence, both inverse S-transforms suffer from different small artifacts. There are no changes in the physics, understanding, and conclusions of our publication.
Keywords :
S-parameters; discrete time filters; discrete transforms; artifacts; discrete S transform; discretization; filters; frequency domain expression; inverse S transform; time domain expression; time frequency localization; Attenuation; Disk recording; Equations; Feature extraction; Filters; Frequency domain analysis; Physics; Testing; Time domain analysis; Time frequency analysis;
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2007.896053