IMPLEMENTATION OF THE METHOD OF DETECTION OF SMALL UNMANNED AERIAL VEHICLES
L.O. Myrova, The M.I. Krivosheev Radio Research & Development Institute (NIIR), leading researcher, professor, Dr.Sci.(Tech.); myrova@niir.ru
M.M. Stupnitsky, NIIR, scientific secretary, associate professor, Ph.D.; smm@niir.ru
P.I. Antonovich, NIIR, director of the Internet of Things Research Center (IoTRC), associate professor, Dr.Sci.(Mil.); p.antonovich@niir.ru
E.E. Devyatkin, NIIR, director of the Advanced Wireless Communication Technologies Research Center, Ph.D.; edevyatkin@niir.ru
S.V. Shvec, NIIR, head of a laboratory, Ph.D.; shvec@niir.ru
О.А. Panchishen, NIIR, specialist; panchishen@niir.ru
Keywords: small unmanned aerial vehicle, UAV, detection means, portable detection complex for small unmanned aerial vehicles
The article is devoted to the analysis of detection means of small unmanned aerial vehicles (UAV). The features of small UAVs, the presence of which affects the degree of complexity of tasks for their detection, are considered. The implementation of the method of radio-electronic impact on the small UAV is shown on the example of a portable complex for detecting the small UAV.
MODEL OF THE MOBILE ROBOTIC COMPLEX MANAGEMENT SYSTEM
A.A. Berezkin, Bonch-Bruevich Saint-Petersburg State University of Telecommunications (SPbSUT), associate professor, Ph.D.; berezkin.aa@sut.ru
R.M. Vivchar, SPbSUT, associate professor, Ph.D.; ramzec9322@rambler.ru
R.V. Kirichek, SPbSUT, rector, associate professor, Dr.Sci.(Tech.); kirichek@sut.ru
Keywords: mobile robotic complex, management system, FPV-control.
The article presents the task of developing a model for the operation of a control system for a mobile robotic complex. Its formal description is given. The structure of the model is presented, its main elements are described. The system of performance indicators of the robotic complex control system is defined. An approach to substantiating the requirements for performance indicators and their calculated required values are described.
SDN CONTROLLER PLACEMENT METHOD ON VANET MOBILE NODES FOR DENSE AND ULTRA-DENSE 6G NETWORKS
A.S. Muthanna, Bonch-Bruevich Saint-Petersburg State University of Telecommunications, department of communication networks and data transmission, associate professor, Ph.D.; ammarexpress@gmail.com
Keywords: SDN, Mobile SDN, 6G, MEC.
The article explores the problem of creating a mobile SDN, in which SDN controllers are installed on moving objects, such as buses, to provide communication in high-dense and ultra-dense 6G networks. The mobile SDN controller interfaces with the virtual machine version of the SDN controller on the MEC servers connected to the eNB. The system was tested on heterogeneous real scenarios, the results obtained confirmed its functionability. The proposed method of placing controllers allows to reduce the delay by up to 60% compared to traditional MEC models. Moreover, the proposed method reduces energy consumption by 72% compared to the fog-MEC model.
FAULT LOCALIZATION BY RADIOSENSOR DIAGNO
K.A. Boikov, MIREA — Russian Technological University, department of radio wave processes and technologies, associate professor, Ph.D.; nauchnyi@yandex.ru
Keywords: fault localization, signal radio profile, parameter extraction, technical diagnostics, spurious emissions.
The paper shows the possibility of localizing a malfunction of a complex hardware-software electronic tool with a new method of radio-sensor technical diagnostics. A method is presented for registering the electrical component of the electromagnetic field — the signal radio profile of a radioelectronic unit emitted by the radio-electronic device itself. An experiment was carried out to register the signal radio profile, its analytical expression was presented, and a correlation analysis of the original and reconstructed signal radio profile was performed. A generalized technique for conducting radiosensor technical diagnostics with fault localization is presented. Using the example of an element of the «smart home» system — a heating controller with intentionally introduced malfunctions into its relay control unit, the possibility of detecting and localizing a malfunction at an early stage of occurrence is shown.
DEVELOPMENT OF PARALLELISM IN FIBER-OPTIC TRANSMISSION SYSTEMS
V.N. Korshunov, Russian Research Institute of Cable Industry, chief researcher, Dr. Sci.(Tech.); telecom.cables@vniikp.ru
I.A. Ovchinnikova, Russian Research Institute of Cable Industry, head of the telecommunication cable and wire division, Dr. Sci.(Tech.); irovchinnikova@gmail.com
N.A. Shishova, Moscow Technical University of Communications and Informatics, head of the department of multichannel telecommunication systems, Ph.D.; n.a.shishova@mtuci.ru
Keywords: fiber-optic transmission system, bandwidth, spectral parallelism, technical economics.
The problem of fiber-optic transmission systems bandwidth increasing in order to maintain the growing traffic in the information infrastructure is considered. The concept of parallelism of transmission of infocommunication signals is presented. A three-dimensional structure of the bandwidth of a transmission system with spectral and spatial parallelism is constructed, the parallelism development is modeled. New technical solutions are proposed, a technical and economic assessment of parallelism development in high-speed fiber-optic transmission system is given.
OPERATIONAL RELIABILITY OF COMMUNICATION NETWORKS AT THE END OF THE SERVICE LIFE
OF OPTICAL CABLES
D.A. Paltsin, The M.I. Krivosheev Radio Research & Development Institute, director of the Access Networks Research Center; palcin@niir.ru
Keywords: communication networks, fiber-optic cables, service life, operational reliability index.
The analysis of the features of the transport optical networks of the Russian information infrastructure is carried out. Measures to ensuring the operational reliability of communication networks at the end of the passport service life of optical cables are proposed.
UNIVERSAL VOCODER ALGORITHM FOR DIGITAL NARROWBAND PROFESSIONAL MOBILE RADIO
COMMUNICATIONS
V.M. Balyukov, The M.I. Krivosheev Radio Research & Development Institute (NIIR), deputy director of the Mobile Communications Research Center; balyukov@niir.ru
V.V. Skomorokhov, NIIR, lead engineer, associate professor, Ph.D.(Phys.-Math.); vvs.tmb@mail.ru
Keywords: multiband speech encoding, parameters of the vocal tract, pitch, voiced or unvoiced frequencies, time and frequency domain analysis.
A method of speech encoding is presented, which is called a modified multiband excitation model. In the proposed method, when analyzing speech, the parameters of the model are estimated by explicitly comparing the original peech spectrum with the synthesized speech spectrum. Accurate and reliable methods for estimating the parameters of this model have been developed, allowing to declare the band around each fundamental voiced or unvoiced frequency and to more reliably estimate the pitch.
RECURRENT MAXIMUM LENGTH SEQUENCES OVER A GALOIS FIELD WITH DOUBLE EXTENSION
O.S. Kognovitsky, Bonch-Bruevich Saint-Petersburg State University of Telecommunications (SPbSUT), department of communication networks and data transmission, professor, Dr.Sci.(Tech.); kognovickiyo@sut.ru
D.S. Kukunin, SPbSUT, department of communication networks and data transmission, associate professor, Ph.D.; kukunin.ds@sut.ru
Keywords: Galois field, field with double extension, maximum length sequences, dual basis.
The use of broadband modulation in modern data transmission systems provides an increase in their efficiency in terms of such indicators as noise immunity and energy intensity of transmitted signals, and also increases the level of secrecy of the process of transmitting information over a channel with interference. This process of spread spectrum is realized due to special code constructions, in particular, maximum length sequences. This article is devoted to new forms of recurrent maximum length sequences over a field with double expansion, as well as their properties, which allow them to be used in various tasks in the future, including for expanding the signal spectrum.
METHOD FOR IMPROVING NOISE IMMUNITY BY INTEGRATING CODING/DECODING AND DIVERSE RECEPTION OF TELEMETRY DATA
V.L. Vorontsov, JSC Russian Space Systems, leading specialist, Ph.D.; a762642@yandex.ru
Keywords: data block, decoding, information and telemetry support for launch vehicle development, coding, integrating, diverse reception, telemetry information.
A method for improving noise immunity of telemetry data is presented. The method consists in forming blocks with information data of telemetry and the corresponding data blocks of check bits of the set code on a telemetered object. Moreover, information data are transmitted in the direct transmission mode, and check bit data are transmitted through the onboard memory operating in the «delay line» mode. The coding/decoding technology is applied, that allows restoring information data when decoding telemetry data received by earth-based software and hardware facilities, in cases of relatively long time intervals with losses of telemetry information in downlink channels (due to data distortion by interference).
