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"JOURNAL OF
RADIO ELECTRONICS" (Zhurnal
Radioelektroniki)
ISSN 1684-1719,
N
10, 2016 |
contents
full
text: html,
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A
method of cancellation of disturbances
based on vector-matrix transformation
A. E. Manokhin
Ural Federal University
The paper is received on July 4, 2016
Abstract. A problem of extracting continuous (gaussian)
and pulse (symmetric) signals on a background of continuous (gaussian) and
pulse (symmetric) disturbances with using a method based on vector-matrix transformation
(Wiener-Hopf equation) is decided in the work. The distinction of the method is
an absence of demand on mutually uncorrelated disturbances in channels. Thanks to it,
a disturbances canceller, realizing the method, can be made on single channel
scheme. It is established that the gain in signal-to–noise at the output of the
vector-matrix canceller can reach 18 dB if white Gaussian noise or impulse
noise is cancelled. The worst cancellation occurs when frequency spectra of the
signal and disturbance is congruous. An imbalance of disturbance variances in
the channels affects the extraction of the desired signal.
Key words: Wiener-Hopf equation, the
vector-matrix canceller, a correlation matrix, a symmetric telegraph
process.
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