Vestnik of Ryazan State
Radio Engineering University

 Contents and abstracts

RADIO ENGINEERING AND COMMUNICATION SYSTEMS

TWO-CRITERIAL SYNTHESIS OF OFDM-SIGNALS TO INCREASE ENERGY EFFICIENCY AND NOISE IMMUNITY

Autors: A. A. Lisnichuk, A. V. Batishchev.

Key words: OFDM; energy efficiency; noise immunity; multi-criteria synthesis; PAPR; Tone Reservation.

DOI: 10.21667/1995-4565-2021-76-3-16

COMPARATIVE ANALYSIS OF TECHNIQUES FOR SPECTRAL ESTIMATION OF MULTI-DIMENSIONAL SIGNALS BY PRONY’S METHOD

Autors: D. V. Avramenko, V. G. Andrejev.

Key words: two-sided Prony’s method, two-dimensional Prony’s method, system of Yule – Walker equations, weight vector, spectral parametric estimation, pseudo-inverse matrix, minimization of the mean square of the error.

DOI: 10.21667/1995-4565-2021-76-17-24

ADAPTING THE CELP CODE TO ACOUSTIC INTERFERENCE

Autors: V. T. Dmitriev.

Key words: speech signal, acoustic interference, adaptive codec, CELP, primary coding, speech quality.

DOI: 10.21667/1995-4565-2021-76-25-34

MATHEMATIC AND SOFTWARECOMPUTER SYSTEMS
AND COMPUTER NETWORKS

EMPLOYMENT DATA CLEANING METHODS IN DATABASE REENGINEERING

Autors: A. I. Baranchikov,I. I. Yakovlev,I. A. Klyueva.

Key words: data, database, data structure, data cleansing, reengineering, subject area, attribute, profiling, data mining.

DOI: 10.21667/1995-4565-2021-76-35-41

INTELLIGENT INFORMATION SYSTEMS AND TECHNOLOGIES

DEVELOPMENT OF A MECHANISM FOR COLLECTING AND ANALYZING DATA TO ASSESS THE LEVEL OF TRUST IN GOVERNMENT USING VOICE ASSISTANTS

Autors: O. D. Kazakov, A. K. Sologubov.

Key words: voice assistant, assessment of the level of trust in authority, natural language processing, feed forward neural networks, text sentiment analysis.

DOI: 10.21667/1995-4565-2021-76-42-52

CONSISTENCY ANALYSIS OF SPECIALIST VIEWS UNDER CONDITIONS OF CONTRADICTORY EXPERT ESTIMATES OF PROJECT ALTERNATIVES

Autors: S. V. Skvortsov,V. I. Khryukin,Т. S. Skvortsovа.

Key words: expert estimates, Spearman correlation coefficient, concordance coefficient, cluster analysis, project alternatives ranking, related ranks, expert groups, estimates consistency, decision support systems.

DOI: 10.21667/1995-4565-2021-76-53-64

INCREASING DATA CLASSIFICATION ACCURACY USING k NEAREST NEIGHBORHOOD ALGORITHM BASED ON TRAINING DATA PRE-CLUSTERIZATION

Autors: V. I. Oreshkov.

Key words: data mining, machine learning, supervised learning, training example, classification, clustering, class, cluster, centroid, cross validation.

DOI: 10.21667/1995-4565-2021-76-65-73

INTERPRETABLE MULTICLASS CLASSIFICATION METHOD

Autors: A. A. Bubnov, M. A. Gusev, K. A. Maikov, A. N. Pylkin.

Key words: multiclass classification, interpretable method, branch and bound method, CORELS, binary classification, decision trees, binary classification, bit strings.

DOI: 10.21667/1995-4565-2021-76-74-80

FACTORS DETERMINING PROPAGATION OF INFORMATION IN SOCIAL NETWORKS

Autors: M. I. Kuptsov,V. A. Minaev.

Key words: social network, Internet community, propagation of information, modeling, statistical regularity.

DOI: 10.21667/1995-4565-2021-76-81-89

SYSTEM ANALYSIS, MANAGEMENT AND INFORMATION PROCESSING

MULTI-LOOP SUBORDINATE CONROL SYSTEM IN MULTICHANNEL REPRESENTATION

Autors: A. A. Voevoda, V. Yu. Filiushov.

Key words: DC electric drive, subordinate regulation, non-square object, polynomial matrix decomposition, multi-loop system, multi-channel system, embedding.

DOI: 10.21667/1995-4565-2021-76-90-100

APPLICATION OF NUMERICAL METHOD FOR PRELIMINARY DATA PROCESSING FOR ANALYTICAL SYSTEMS IN THE SPHERE OF HOUSING AND UTILITIES

Autors: M. G. Kostikov.

Key words: numerical method, analytical system, extrapolation, data cleaning.

DOI: 10.21667/1995-4565-2021-76-101-108

PHYSICAL ELECTRONICS AND NANOELECTRONICS

ANALYTICAL APPROXIMATION OF NUMERICAL CALCULATION OF QUASI FERMI LEVEL IN QUANTUM WELL VERSUS GATE VOLTAGE FOR COMPACT MODELING OF GaAs HEMT

Autors: A. A. Popov.

Key words:HEMT, compact model, analytical approximation, quasi Fermi level, surface charge density, heterostructure, numerical solution, interpolation function.

DOI: 10.21667/1995-4565-2021-76-109-125

STUDY OF SURFACE RELIEF FEATURES OF SILICON NANOCRYSTALLINE FILMS

Autors: A. Y. Sudakova,N. V. Rybina.

Key words: surface, two-dimensional detrended fluctuation analysis, average mutual information method, nanocrystalline silicon, annealing, texturing, SEM images.

DOI: 10.21667/1995-4565-2021-76-126-130