ARCHITECTURE OF HETEROGENEOUS RADIOCOMMUNICATION NETWORKS
V.A. Grigoryev, ITMO University, head of the wireless communications department, professor, Dr.Sci. (Tech.); firstname.lastname@example.org
Yu.A. Raspaev, ITMO University, wireless communications department, associate professor, Ph.D.; email@example.com
V.O. Aksenov, ITMO University, wireless communications department, head of the laboratory; firstname.lastname@example.org
Yu.A. Bussel, ITMO University, wireless communications department, graduate student; email@example.com
A.A. Pestryaev, ITMO University, wireless communications department, graduate student; firstname.lastname@example.org
The heterogeneous architecture of the radiocommunication network that uses two frequency bands and two radio technologies is considered. The construction of heterogeneous networks that meet the reliability and capacity requirements for technological and departmental networks is analyzed. The conditions of cost advantage in creation of heterogeneous network at the given requirements to reliability and capacity are defined.
Keywords: LTE, UHF radio, heterogeneous network, technological radio network, departmental radio network, number of RAN channel calculation, heterogeneous RAN costs, communication reliability.
PREDICTION OF RADIO CHANNEL PARAMETERS AND RECEIVE ANTENNA SELECTION FOR LTE MIMO SYSTEMS
V.B. Kreindelin, Moscow Technical University of Communications and Informatics, professor, Dr.Sci.(Tech.); email@example.com
M.Yu. Starovoytov, Nokia Solutions and Networks, manager; firstname.lastname@example.org
Application of receive antenna selection for increasing the spectral efficiency of SU MIMO 4×4 Spatial Multiplexing in the conditions of quickly changing non-stationary radio channel is shown. Prediction of radio channel parameters as a necessary condition for operation of antenna selection algorithm requires the regular reading and processing of the pilot information. The methods allowing to combine regular reception of information about the non-stationary radio channel for all receive antennas and preservation of the main part of spectral efficiency gain from receive antennas selection are considered.
Keywords: MIMO, spatial multiplexing, spectral efficiency, antenna selection, non-stationary channel, linear antenna array.
SOLUTION OF THE PROBLEM OF MULTIPLE COMPARISONS IN TASKS OF AUTOMATIC SIGNAL RECOGNITION AT THE OUTPUT OF VOICE COMMUNICATION PATH
V.V. Savchenko, Nizhniy Novgorod State Linguistic University, professor, Dr.Sci. (Tech.); email@example.com
The task of automatic recognition of speech signals with guaranteed reliability for voice-activated control systems of robotics by phone is set. The problem of multiple comparisons is investigated. The new two-stage algorithm with strictly limited from above error probabilities of first and second kind is proposed. It is based on the decision rule of the Neumann structure. It is experimentally shown that the high reliability of speech recognition in the proposed algorithm is achieved due to the essential asymmetry of its decision statistics in the Kullback-Leibler information metric.
Keywords: voice communication systems, speech signal, automatic signal processing, signal recognition, Bayesian test, problem of multiple comparisons.
SIGNAL CHARACTERISTICS IN RADIO SYSTEM WITH ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING IN THE CASE OF IN-PHASE CHANNEL SUBCARRIERS
A.I. Fomin, Moscow Aviation Institute (MAI), professor, Ph.D.; YalinAndrey@hotmail.com
A.K. Yalin, MAI, associate professor, Ph.D.; YalinAndrey@hotmail.com
The paper deals with the signals with orthogonal frequency division multiplexing (OFDM) in the aviation communication systems. Recommendations for building systems with OFDM in a significant Doppler shift frequency of the received signal are offered. Statistical analysis of the OFDM signal in the case of in-phase channel subcarriers is presented. Dependences that allow to estimate the probabilistic characteristics of the group OFDM signal envelope are obtained. The correctness of the results is confirmed by computer simulation.
Keywords: radiocommunication, orthogonal frequency division multiplexing, Doppler effect in OFDM systems, OFDM signals statistics.
SIGNAL DISTORTIONS ESTIMATION AND COMPENSATION IN MIMO SYSTEM RECEIVE PATH
N.Eu. Poborchaya, MTUCI, department general theory of communication, associate professor, Ph.D.; firstname.lastname@example.org
A.V. Pestryakov, MTUCI, head of department radioequipment and circuit engineering, Dr.Sci. (Tech.); email@example.com
The optimal channel estimation algorithm for a signal with quadrature amplitude modulation (QAM) in the condition of uncorrelated Rayleigh fading is considered. Evaluation of direct conversion receiver distortions in MIMO systems with spatial multiplexing are investigated. The results of numerical simulation confirm the efficiency of the synthesized estimation algorithm and the effectiveness of the compensation procedure implemented on the basis of the estimates obtained.
Keywords: MIMO systems, quadrature amplitude modulation,amplitude-phase unbalance, I/Q-imbalance, DC-offset, frequencyoffset, phase noise, least square method, statistical averaging, numerical simulation.
RESEARCH OF INTERACTION BETWEEN AUGMENTED REALITY APPLICATIONS AND 1С CLOUD SERVICES
M.A. Makolkina, SPbSUT, department of communication networks and data transmission, associate professor, Ph.D.; firstname.lastname@example.org
D.V. Okuneva, SPbSUT, department of software and computing engineering, senior lecturer, Ph.D.; email@example.com
V.A. Kulik, SPbSUT, department of communication networks and data transmission, assistance lecturer; firstname.lastname@example.org
V.A. Teltevskaya, SPbSUT, department of communication networks and data transmission, assistance lecturer; email@example.com
A.S. Shcherbak, SPbSUT, department software and computing engineering, bachelor; firstname.lastname@example.org
R.V. Kirichek, SPbSUT, department of communication networks and data transmission, associate professor, Ph.D.; email@example.com
The system of IoT devices identification based on the technology of augmented reality and server software «1C:Enterprise» is described. Its architecture and model network were developed. The following parameters were tested: delay, throughput, Hurst parameter for device-generated augmented reality traffic. Testing of model in the following parameters is held: a delay, capacity, Hirst’s parameter for the traffic generated by the augmented reality device.
Keywords: augmented reality, Internet of Things, testing, delay, Hurst parameter.
OPTOELECTRONIC SYSTEM FOR REGISTRATION OF PHENOMENA, PREVENTING SAFETY OF HELICOPTER FLIGHT
D.A. Nikitin, MAI, faculty of aircraft radio engineering, department of radiorecieving devices, postgraduate; firstname.lastname@example.org
A.N. Nazarov, MAI, faculty of aircraft radio engineering, department of radiorecieving devices, postgraduate; email@example.com
G.V. Merkishin, MAI, faculty of aircraft radio engineering, head of the department of radiorecieving devices, senior researcher, Dr.Sci. (Tech.); firstname.lastname@example.org
A.V. Kartukov, MAI, faculty of aircraft radio engineering, department of radiorecieving devices, senior lecturer; email@example.com
The perspective of creation of opto-electronic systems for recording the aerodynamic phenomena of the helicopter lift rotor, preventing maneuvering and safety of helicopter flight (blade flutter, ground resonance and vortex rings), using the real time laser method, is considered. The trial model of system for registering flows, arising as a result of car movement, is presented. It confirms the possibility of implementation of similar measuring systems in helicopters.
Keywords: optoelectronic flow recording system, flight safety, lift rotor, ground resonance, blade flutter, vortex rings.
ORGANIZATIONAL ISSUES OF PRODUCTION PROGRAMS OF DEFENSE INDUSTRY ENTERPRISES IN THE STRUCTURE OF THE CONCERN-MANUFACTURER OF COMMUNICATION EQUIPMENT
A.L. Buzov, JSC Concern Automation, director for innovative development and science, professor, Dr.Sci. (Tech); firstname.lastname@example.org
B.A. Movtyan, JSC Concern Automation, deputy general director for the state order and investment; email@example.com
The urgency of updating the equipment and technologies of creation of radioelectronic and telecommunication products for defense purposes in modern conditions is shown. The importance of diversification of production programs of defense enterprises is noted. On the example of JSC Concern Automation the assessment of current situation and strategic development priorities are presented. The choice of the target business model and the organizational model of the Concern are justified.
Keywords: defense industry enterprises, production programs of enterprises, strategic priorities, vertically integrated industrial holding companies, industrial concerns, radioelectronics industry, diversification of production.
THEORY AND PRACTICE OF DEVELOPMENT OF STUDING MODELS AT THE BASIC DEPARTMENT OF CONFIGURABLE BUSINESS APPLICATIONS IN SPBSUT
D.V. Okuneva, SPbSUT, department of software engineering and computer science, senior lecturer, Ph.D.; firstname.lastname@example.org
L.B. Buzyukov, SPbSUT, head of the department of software engineering and computer science, professor, Ph.D.; email@example.com
The education system of the Russian Federation has changed significantly over the past few years: transition to the Bologna system, the introduction of educational standards, etc. However, employers need qualified specialists, whose preparation time in higher education institutions has been significantly decreased. The solution of this problem seems in interaction of business and higher education institution – the organization of basic departments. In this article theoretical and practical issues of organization of students’ training at the basic department of «Configurable business applications» in St. Petersburg State University of Telecommunications are considered.
Keywords: education system, competence, basic department, 1C, models and methods of studying.
TERMINOLOGY IN EDUCATION ELECTRODYNAMICS SUBJECTS
Eu.R. Milyutin, SPbSUT, department of radio systems and signal processing, professor, Dr.Sci.(Tech.); firstname.lastname@example.org
Problems of the terminology used in curriculums of electrodynamic subjects of higher education institutions on radio engineering specialties are considered.
Keywords: electrodynamics, terminology, education.
HARDWARE-SOFTWARE COMPLEX OF THE FUNCTIONAL CONTROL AUTOMATION OF EXTRA LARGE-SCALE INTEGRATED CIRCUITS
K.K. Smirnov, Scientific Research Institute of System Analysis (SRISA/NIISI RAS), head of electrical measurements department; email@example.com
A.V. Nazarov, MAI, professor, Dr.Sci. (Tech.); firstname.lastname@example.org
The article proposes a hardware-software complex for generating functional tests for equipment such as Advantest V93000, AEHR MAX3B, etc., working on the basis of the original software and the language of the description of functional test algorithms. The structure and functional capabilities of the complex, the methodology for preparing test programs, the methodology for developing and launching research tests and analyzing the results are described. The developed IP-blocks of functional test for the hardware and software complex can be used for diagnostics and periodic certification of measuring equipment, providing a 100% control of the parameters of the tested integral structures of super-large integrated circuits.
Keywords: microcircuit, microcircuit tests, software, functional control, software-hardware complex.
CORRELATION ANALYSIS OF CYCLOSTATIONARY NEAR-FIELD ELECTROMAGNETIC RADIATIONS OF PRINTED CIRCUIT BOARDS
Yu.V. Kuznetsov, MAI, head of the theoretical radio engineering department, professor, Dr.Sci. (Tech.); email@example.com
A.B. Baev, MAI, theoretical radio engineering department, associate professor, Ph.D.; firstname.lastname@example.org
A.A. Gorbunova, MAI, theoretical radio engineering department, associate professor, Ph.D.; email@example.com
M.A. Konovalyuk, MAI, theoretical radio engineering department, associate professor, Ph.D.; firstname.lastname@example.org
Correlation analysis of the cyclostationary near-field unintentional radiations of the printed circuit boards (PCB) can be used for localization of the transmission line paths transferring the deliberately programmed pseudorandom sequences. Induced surface currents create electromagnetic radiation, which can be measured by the near-field magnetic probes scanning in the plane parallel to the surface of the PCB. The revealed cyclostationary properties of the radiated emissions allow to perform the synchronized ensemble averaging of the scanning probe measured signals multiplied by the programmed pseudorandom sequence for estimating the cross-correlation functions. The spatial-time dependence of the obtained cross-correlation predicts the distribution of the average power for the deliberately formed stochastic cyclostationary process transferred over the surface of the PCB. In this paper it is presented the procedure for using the cross-correlation function to estimate the spatial and frequency-time characteristics of the cyclostationary stochastic electromagnetic fields emitted by printed circuit boards as part of modern multifunctional devices.
Keywords: printed circuit board, near-field, pseudorandom sequence, cyclostationary electromagnetic radiation, synchronized averaging, space-time cross-correlation function.
DEVELOPMENT OF NEW TECHNOLOGICAL WAY BY MEANS OF INNOVATIVE DEVELOPMENTS IN NEUROCOMMUNICATIONS
A.B. Kondybaeva, MISIS, department of information technologies, magister; аlmakonde18@gmail.com
A.A. Ivanov, LLC Neuromanagement, director general; email@example.com
V.P. Alexandrov, NEURO, director general, Moscow school of management Skolkovo, department of information technologies, business analyst; firstname.lastname@example.org
Developments in the field of modern methods of neurocommunication through the use of neurointerfaces, special algorithms of brain activity recognition and data visualization in real time are considered. Neurocommunication neuron interfaces for communication between objects of interaction (people) are studied.
Keywords: electroencephalography, interface brain computer,main components analysis, neurocontrol, neurocontrollers, removal of artifacts, signal processing.
CYBER SECURITY PERSPECTIVE FOR INTERNET OF EVERYTHING (IoE)
S.V. Melnik, MTUCI, head of department FSUE CSRTI, STC KOMSET, technical director, Ph.D.; email@example.com
Perspective directions of development of Internet (Internet of Things (IoT), Industrial Internet of Things (IIoT)), Tactile Internet of Things (TIoT)) are described. These areas are planned to be integrated into the general concept of Internet of Everything (IoE), or the Universal Internet, with the basic principle of «always connected». Potentially it means increase in number of Internet connections to 70 trillion by 2025, reconstruction and modernization of modern communication networks and new approach to information security.
Keywords: Internet of Things, cyber security, new generation networks, digital economy.