Filtering Signals against Noise near the Attractor

In this paper, we numerically studied the interaction of signal and noise in a second-order nonlinear active filter. The filtering of the signal against a background of intense noise through a nonlinear filter with a bandpass filter at output is analyzed. The output signal-to-noise ratio is establis...

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Bibliographic Details
Published in:Journal of communications technology & electronics 2019-02, Vol.64 (2), p.153-157
Main Authors: Nefedov, V. I., Reshetnyak, S. A., Tret’yakov, G. N., Zasovin, E. A.
Format: Article
Language:English
Subjects:
Background noise
Bandpass filters
Communications Engineering
Electronic filters
Engineering
Networks
Noise
Nonlinear filters
Theory and Methods of Signal Processing
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Summary:In this paper, we numerically studied the interaction of signal and noise in a second-order nonlinear active filter. The filtering of the signal against a background of intense noise through a nonlinear filter with a bandpass filter at output is analyzed. The output signal-to-noise ratio is established as more than three times higher than the similar ratio without using a nonlinear filter.
ISSN:1064-2269
1555-6557
DOI:10.1134/S1064226919020165