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Journal Radioengineering №2 for 2017 г.
Article in number:
Estimation of multiplicative noise influence on measurement error of extended objects motion parameters
Keywords: radar meter extended object multiplicative noise signal/noise ratio measurement error unbiased estimates non-Gaussian noise
Authors:
V.M. Artyushenko - Dr. Sc. (Eng.), Professor, Head of Department of Information Technology and Management Systems, Technological University (Korolyov, Moscow region) E-mail: artuschenko@mail.ru V.I. Volovach - Dr. Sc. (Eng.), Associate Professor, Head of Department of Information and Electronic Service, Volga Region State University of Service (Togliatti) E-mail: volovach.vi@mail.ru
Abstract:
Estimation of multiplicative noise influence on the measurement error of information parameters of the useful signal, carrying information about the parameters of motion of extended objects is obtained. It is shown that the multiplicative noise leads to a bias of estimated parameters of the useful signal; taking into account a bias value allows us to have unbiased estimates. The expressions describing the relative accuracy of information parameters of the signal under the influence of multiplicative noise, having both independent and correlated nature, are obtained. It is shown that the accuracy of measurement of parameters of the processed signal, and, consequently, the parameters of motion of extended objects depends on the nature of the probability density function of both the estimated parameter and acting on the signal multiplicative noise. Moreover, the measurement accuracy increases with increasing difference probability density function from the Gaussian of as the estimated parameter and the influencing multiplicative noise.
Pages: 58-68
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