Search Results - "Kostenko, P. Yu"

Method of Image Denoising in Generalized Phase Space with Improved Indicator of Spatial Resolution by Kostenko, P. Yu, Slobodyanuk, V. V., Kostenko, I. L.

“…Thepaper proposes a nonlocal method of additive noise suppression in digital image based on presenting the image in matrix phase space and using…”
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Measure of Filtering Quality Assessment of Image Noise Using Nonparametric Statistic by Kostenko, P. Yu, Slobodyanyuk, V. V., Vasiuta, K. S., Vasylyshyn, V. I.

“…The paper proposes a new numerical measure for filtering quality assessment of additive white Gaussian noise in digital images based on the analysis of…”
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Stealthiness of analytical chaotic signals by Kostenko, P. Yu, Slobodyanuk, V. V., Barsukov, A. N.

“…This paper considers an approach to constructing analytical chaotic sequences with statistical and dynamic characteristics that are close to the white noise…”
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Method of image filtering using singular decomposition and the surrogate data technology by Kostenko, P. Yu, Slobodyanuk, V. V., Plahotenko, O. V.

“…A method for nonlinear filtering of additive noise on digital image has been proposed. This method is based on presenting the image by its matrix singular…”
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Inverse problems of chaotic dynamics and statistical analysis in providing information security in communication systems and networks by Kostenko, P. Yu, Antonov, A. V., Kostenko, T. P.

“…A new approach based on chaotic systems is proposed to provide information security in communication systems and networks. Statistical attack and attack…”
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Developing the concept of one-way functions for cryptographic security systems using achievements in chaotic dynamics by Kostenko, P. Yu, Antonov, A. V., Kostenko, T. P.

“…The paper shows that an "informal" interpretation of one-way functions in modern cryptography is inadequate and defines such functions in terms of information…”
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Design of Pseudo-Random Discrete Signals with Fractional Power-Law Angular Modulation by Kostenko, P. Yu, Slobodyanuk, V. V., Shapovalov, O. V.

“…The design approach of pseudo-random discrete signals with fractional power-law angular modulation (FM/PM) is considered in the article. These signals as a…”
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Surrogate data generation technology using the SSA method for enhancing the effectiveness of signal spectral analysis by Kostenko, P. Yu, Vasylyshyn, V. I.

“…The problem of enhancing the effectiveness of spectral analysis of signals observed against the background of noise has been considered by using the Root-MUSIC…”
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Enhancing the spectral analysis efficiency at low signal-to-noise ratios using the technology of surrogate data without the segmentation of observation by Kostenko, P. Yu, Vasylyshyn, V. I.

“…A comparative analysis of two methods of estimating the observation correlation matrix (CM) based on obtaining an ensemble of its segments and a…”
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Signal processing correction in spectral analysis using the surrogate autocovariance observation functions obtained by the ATS-algorithm by Kostenko, P. Yu, Vasylyshyn, V. I.

“…Theproblem of processing correction of signals observed against the background of noise has been considered in relation to their spectral analysis by the…”
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Enhancing the efficiency of spectral analysis of signals by the Root-MUSIC method using surrogate data by Kostenko, P. Yu, Vasylyshyn, V. I.

“…A problem of enhancing the efficiency of spectral analysis of signals observed against the background of noise by using the Root-MUSIC method and the…”
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Methods of enhancing the estimation efficiency of the number of signal harmonic components by using the surrogate data technology by Kostenko, P. Yu, Vasylyshyn, V. I.

“…The problem of enhancing the estimation efficiency of the number of harmonic components of signal based on its observation in the presence of additive white…”
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The use of BDS statistics for estimating the parameters of chaotic mappings and regular signals in the presence of noise by Kostenko, P. Yu, Vasiuta, K. S.

“…A new method has been proposed in this paper for estimating the parameters of chaotic and regular signals by their observation against the background of white…”
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Enhancing the efficiency of coherent processing of chaotic signals during the transmission of binary messages using surrogate signals by Kostenko, P. Yu, Vasilishin, V. I., Symonenko, S. N., Vysotskii, O. V., Yakovenko, D. S.

“…A method has been proposed for reducing the influence of noise in observations of chaotic carrier during the binary message transmission using the technology…”
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Estimation of structural stealthiness of chaotic signals by Kostenko, P. Yu, Symonenko, S. N., Barsukov, A. N., Antonov, A. V.

“…The paper considers a variant of estimating structural stealthiness of a chaotic sequence formed by logistic mapping which is used as a carrier during…”
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Improving communication security by complicating chaotic process attractor using linear transform with mandelbrot kernel by Kostenko, P. Yu, Vasiuta, K. S., Symonenko, S. N.

“…Study results of dynamic and static characteristics of linearly transformed chaotic sequence are provided. Mandelbrot kernel values obtained when converting…”
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Use of discrete mapping derived from difference scheme of McKay-Glass differential equation for stealth transmission in binary message by Kostenko, P. Yu, Barsukov, A. N.

“…A method for stealth transmission (masking) of a binary message with the use of chaotic carrier generated by the McKay-Glass cascade is suggested. Numerical…”
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Nonparametric BDS detector of chaotic signals against the background of white noise by Kostenko, P. Yu, Vasiuta, K. S., Symonenko, S. N., Barsukov, A. N.

“…This paper includes an algorithm proposed for detecting a chaotic signal, the functional block diagram for implementing the algorithm proposed, and also the…”
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Detection of the chaotic process distorted by the white noise using BDS statistics by Kostenko, P. Yu, Barsukov, A. N., Vasiuta, K. S., Symonenko, S. N.

“…A nonparametric criterion for the detection of a chaotic process observed against the background of white noise has been proposed with due regard for the…”
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Use of BDS statistic to estimate security of a signal obtained by mixing chaotic carrier by Kostenko, P. Yu, Symonenko, S. N., Barsukov, A. N., Vasiuta, K. S.

“…Efficiency of using the method of mixing a chaotic carrier to provide signal security in information transmission systems with use of BDS statistic is studied…”
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