Zobrazeno 1 - 10
of 23
pro vyhledávání: '"V. I. Vasylyshyn"'
Publikováno v:
Radioelectronics and Communications Systems. 63:201-212
The paper proposes a new numerical measure for filtering quality assessment of additive white Gaussian noise in digital images based on the analysis of closeness of the difference image to white noise. Such analysis is often conducted visually that l
Autor:
V. I. Vasylyshyn
Publikováno v:
2020 17th European Radar Conference (EuRAD).
In the paper the joint using the sample covariance matrix (CM) of the general type and approximation of Toeplitz CM is considered. Such combination of CM can be explained by different performance of direction of arrival (DOA) estimators based on gene
Publikováno v:
2020 IEEE International Conference on Problems of Infocommunications. Science and Technology (PIC S&T).
The approach for design of the discrete pseudorandom signals with power-law angular modulation and time function with non-linear scale in respect of real time is considered. The analysis of the ambiguity function of the constructed signals is perform
Autor:
V. I. Vasylyshyn
Publikováno v:
2019 IEEE International Scientific-Practical Conference Problems of Infocommunications, Science and Technology (PIC S&T).
The improving of performance of the signal parameter estimation when using SSA approach is obtained in the paper. The unitary transformation of extended data matrix obtained after SSA technique or corresponding covariance matrix is used. Such transfo
Autor:
P. Yu. Kostenko, V. I. Vasylyshyn
Publikováno v:
Radioelectronics and Communications Systems. 58:356-361
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 method and the surrogate data technology that is free from surrogate noise. The surrogate
Autor:
V. I. Vasylyshyn
Publikováno v:
Radioelectronics and Communications Systems. 58:116-126
The problem of enhancing the effectiveness of spectral analysis of signals observed against the background of noise by the Root-MUSIC method has been considered using the surrogate data technology implemented by adapting the algorithm of phase random
Autor:
P. Yu. Kostenko, V. I. Vasylyshyn
Publikováno v:
Radioelectronics and Communications Systems. 58:75-84
A comparative analysis of two methods of estimating the observation correlation matrix (CM) based on obtaining an ensemble of its segments and a pseudo-ensemble obtained by applying the technology of surrogate data. It was shown that in the range of
Publikováno v:
2017 4th International Scientific-Practical Conference Problems of Infocommunications. Science and Technology (PIC S&T).
The method of estimation of the manipulation multiplicity of MPSK signal using observation of signal in the white noise with an unknown distribution law is considered in the paper. The properties of nonparametric estimate of multiplicity of signal ma
Autor:
V. I. Vasylyshyn
Publikováno v:
Proceedings of International Conference on Antenna Theory and Techniques; 2017: ICATT-2017-Proc. of XI Int. Conf. on Antenna Theory and Techniques; 367-369
Proceedings of International Conference on Antenna Theory and Techniques; 2017: ; 367-369
Proceedings of International Conference on Antenna Theory and Techniques; 2017: ; 367-369
The estimator bank approach allows improving the performance of direction of arrival (DOA) estimation in the area of low signal-to-noise ratio. In the paper, the estimator bank is formed from the modified Beamspace Root-MUSIC estimator using resampli
Autor:
V. I. Vasylyshyn, P. Yu. Kostenko
Publikováno v:
Radioelectronics and Communications Systems. 57:433-440
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 Gaussian noise using the surrogate data technology has been considered. The results of simula