V.V. Bakumov and A.I. Kryachkov
Coordance of the Development Objectives of the Computer-Aided System for Controlling the Electronics Conflict with Opportunities for Its Technical Characteristic Realization in Case of Fuzzy Initial Information
In the interests of substantiation of requirements set before the promise computer-aided system for controlling the radioelectronic means under the terms of electronic conflict it is suggested the algorithm of solution to the problem of matching the quality parameters with technical characteristics of the system.
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A.N. Druzhinin and B.F. Zmij
Synthesis of Optimum Networks
of ARC-Quadripoles
The problems of optimum implementation of active RC-quadripoles on the basis of two amplifiers with extremely high quality performances over the frequency range up to 1 MHz are considered.
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V.T. Eremenko
Concept of Detection and Correction of Logic Errors in Implementation of
Safety Protocol Profiles
The concept is disclosing the general approach to formation of specific implementation of the safety protocol profiles (SPP). The paper represents mathematical models of occurrence of logic errors because of parallel execution of a number of processes during implementation of the protocols, which, in general case, are running asynchronously due to incorrect description. It is this asynchronous mode that results in occurrence of situation of uncertainty. The procedures for their correction and the procedure for syntax check are determined.
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Yu. I. Savvateev and M. E. Byvshev
Potential Interference-Immunity of MPSK Signal Reception in the Case of Quasiharmonic Interference Background During Single-Channel Observation
The algorithm of single-channel reception of signals of the multiple phase-shift keying (MPSK) at the background of narrowband quasiharmonic interference with synchronization upon the carrier frequency and data symbols is synthesized using the method of optimal non-linear filtering theory. The methodology of estimation of interference-immunity of the algorithm considering interrelation between the signal demodulator and interference compensator is provided.
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A.S. Dubrovin, Yu.A. Meshcheryakov, V.V. Obukhov, and E.A. Rogozin
Program Techniques for Software Protection in Computer-Aided Systems
Possibility of software protection against unauthorized analysis of an algorithm is shown. This protection is realized by means of introduction of uncertainty into the sequence of executable instructions of a microprocessor without change in the functional capabilities of the software fragment. It is offered practical realization of the given approach on the basis of an algorithm which, at every step, uses the encryption in combinations with application of a single key, dynamic memory relocation and random "dilution" of the program body with operators which do not change the functions executed by this program.
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O.V. Nazarov and Yu.I. Savvateev
Synthesis of Quasioptimal Receiver of a M-Positional Frequency-Shift Keying Signal on a Background of Frequency-Modulated and Gaussian Interference in the Case of a Single-Channel Observation
Quasioptimal (in Gaussian approximation) single-channel algorithms of filtration of continuous accompanying parameters and decision rule for extraction of discrete information parameter are concretized for a signal with M-positional frequency-shift keying (MFSK) received against a background of frequency-modulated (FM) and Gaussian interference.
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A.A. Golovkov and A.A. Chaplygin
Synthesis and Analysis of the Matching and Filtering Systems in Case
of Arbitrary Values of Matched Admittances
The structure and parameters of diagrams of the matching and filtering systems providing for transformation of one predetermined admittance into the other one at minimal number of physically realized elements are determined.
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G.S. Kovalev and V.A. Pon'kin
Model of Visual Detection of Moving Space-Extended Objects against Nonuniform Backgrounds
The study considers the problem of determination of laws of influence of nonuniform background characteristics, object texture, as well as parameters of motion of the object and an observer on visual detection of space-extended objects shading a background. A mathematical model of a process of visual detection of moving space-extended objects against nonuniform backgrounds is offered in conception of the process of visual perception based on the theory of optimum detection.
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A.P. Preobrazhenskiy
On the Possibility to Determine Shape of Object in Vicinity of Recovery of Local Reflectors on its Surface from Backward Scattering Diagrams
Possibility is investigated for the prognostication of the object shape in the vicinity of the recovery of local reflectors based on the experimentally obtained initial data on the scattering properties of the object. Examples are given of the prediction of the shape of an object for the model of the edge of the object in the shape of a two-dimensional wedge.
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V.A. Shlykov and L.A. Bolychevtseva
Indirect Numerical Checking: Investigation and Mathematical Model
The paper is devoted to the analysis of the organizational structure of an indirect numerical checking and to construction of its mathematical model.
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