DOI: https://doi.org/10.3103/S0735272708070078
Open Access Open Access  Restricted Access Subscription Access

A model of information process for algorithm of people finding behind optically opaque barriers

O. V. Sytnik

Abstract


Spectral-correlation characteristics of random information processes are considered. These processes appear in distance probing and control systems, and caused by objects, slowly oscillating in comparison with carrier signal period and compared with precession observation period, separate parts oscillation or objects linear movement. It is proposed a method of mathematic formalization of model of an information process, caused by output signal of coherent Doppler locator. Characteristics of reflected from undisturbed human signals are researched. It is shown that of spectral correlations provide the best in point of view of maximal signal-to-noise ratio spectral components of periodically correlated process detection on a background of non-coherent interferences at fixed sample length. It is shown a possibility of proposed model to be used in algorithm of recognizing and identification of slow objects, including hidden behind opaque barriers, by means of radio-methods.


Full Text:

PDF

References


A. N. Kolmogorov, “Interpolation and Extrapolation of Stationary Random Sequences,” Izv. AN SSSR, Ser. Matematicheskaya, No. 5, 3 (1941).

N. Wiener, Extrapolation, Interpolation and Smoothing of Stationary Time Series (John Willey, New York, 1949).

H. L. Van Trees, Detection, Estimation and Modulation Theory, Part I: Detection, Estimation, and Linear Modulation Theory (John Wiley & Sons Inc., New York, 1968).

M. Loeve, Probability Theory (Van Nostrand, Princeton–Toronto–London, 1955; Izdat. Inostr. Lit., Moscow, 1962).

A. Yu. Grinev, Problems of Subsurface Radiolocation. Joint Monograph (Radiotekhnika, Moscow, 2005).

J. S. Bendat and A. G. Piersol, Measurement and Analysis of Random Data (Wiley, New York, 1966; Mir, Moscow, 1974).

Ya. P. Dragan, Energy Theory of Linear Models of Stochastic Signals (Tsentr Strategichnyh Doslidzhen’ Eko-Bio-Teknichyh System, Lviv, 1997) [in Ukrainian].

Ya. P. Dragan, Structure and Representation of Stochastic Signals Models (Naukova Dumka, Kiev, 1980) [in Russian].

V. A. Omelchenko and V. G. Sannikov, Probability and Deterministic Models of Channels and Information Transmission Problems in Electrical Communications (NMK VO, Kiev, 1992) [in Russian].

W. A. Gardner, “Spectral Correlation of Modulated Signals: Part I—Analog Modulation,” IEEE Trans. Commun. COM–35, No. 6, 584 (1987).







© Radioelectronics and Communications Systems, 2004–2020
When you copy an active link to the material is required
ISSN 1934-8061 (Online), ISSN 0735-2727 (Print)
tel./fax +38044 204-82-31, 204-90-41