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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Imprimer: 0040-2508
ISSN En ligne: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v67.i14.30
pages 1247-1267

Removal of Mixed Poisson and Impulse Noise in 1-D Signals by Non-Adaptive and Adaptive Nonlinear Filters

S. Peltonen
Institute of Signal Processing, Tampere University of Technology, Tampere, Finland
P. Ye. Yeltsov
National Aerospace University (Kharkov Aviation Institute), Kharkov, Ukraine
S. K. Abramov
Department of Transmitters, Receivers and Signal Processing, National Aerospace University (Kharkiv Aviation Institute), 17 Chkalov St., Kharkiv, 61070, Ukraine
A. N. Besedin
National Aerospace University (Kharkov Aviation Institute), Kharkov, Ukraine

RÉSUMÉ

A case of filtering 1-D signals corrupted by the Poisson fluctuative and impulse noise is considered. Statistical characteristics of output signals are analyzed for several conventional nonlinear non-adaptive filters. It is shown that output bias can be present and it depends upon the filter type, scanning window size and information content of the processed signal. Residual noise variance is also derived and studied. A soft-switching locally adaptive filter that takes into account the observed statistics is proposed and tested.


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