27 citations · 229 across the 64 of their papers we have counts for
4 papers · 1 filter
A Note on the Shannon Entropy of Short Sequences
H. M. de Oliveira, Raydonal Ospina
For source sequences of length L symbols we proposed to use a more realistic value to the usual benchmark of number of code letters by source letters. Our idea is based on a quanti…
von Mises Tapering: A Circular Data Windowing
H. M. de Oliveira, F. Chaves
Continuous standard windowing is revisited and a new taper shape is introduced, which is based on the normal circular distribution by von Mises. Continuous-time windows are conside…
The Hamming and Golay Number-Theoretic Transforms
A. J. A. Paschoal, R. M. Campello de Souza, H. M. de Oliveira
New number-theoretic transforms are derived from known linear block codes over finite fields. In particular, two new such transforms are built from perfect codes, namely the \texti…
A Kotel'nikov Representation for Wavelets
H. M. de Oliveira, R. J. Cintra, R. C. de Oliveira
This paper presents a wavelet representation using baseband signals, by exploiting Kotel'nikov results. Details of how to obtain the processes of envelope and phase at low frequenc…