ROUTING PROTOCOL’S SIMULATION FOR WIRELESS MOBILE NETWORKS
S.V. Alekhin, Federal Research & Production Center JSC «POLYOT Research & Production Company», Research & Development Center, leading engineer; serg801@rambler.ru
K.L. Voitkevich, Federal Research & Production Center JSC «POLYOT Research & Production Company», Research & Development Director, professor, Dr. Sci. (Tech.); polyot@atnn.ru
The article considers a data transfer routing protocol for wireless mobile networks. A description of the routing protocol and the strategy of improving the communication quality are presented, simulation results are given with respect to the proposed protocol and the actual one.
Keywords: MANET, wireless networks, routing, metrics.
PROBLEMS OF UNMANNED AERIAL VEHICLE CONTROL PATH CREATION BASED ON HF RADIO LINE
K.L. Voitkevich, Federal Research & Production Center JSC «POLYOT Research & Production Company», Research & Development Director, professor, Dr. Sci. (Tech.); polyot@atnn.ru
A.A. Sulima, Federal Research & Production Center JSC «POLYOT Research & Production Company», Research & Development Center, chief; nic@npp-polyot.ru
P.A. Zats, Federal Research & Production Center JSC «POLYOT Research & Production Company», senoir engineer; nic@npp-polyot.ru
In article the assessment of range of a HF radio communication with set reliability is made and ways of the organization of a UAV control path on the basis of these estimates are considered.
Keywords: HF radio line, UAV.
STRUCTURAL OPTIONS OF AUTOMATED AVIATION COMMUNICATIONS COMPLEX CONTROL SYSTEM
A.V. Ekaterinin, Federal Research & Production Center JSC «POLYOT Research & Production Company», head of department; alvek@rambler.ru
V.V. Mozina, Federal Research & Production Center JSC «POLYOT Research & Production Company», engineer; mozinaw@yandex.ru
Structural options of automated communications complex control system (ACCCS) of aviation objects are presented. Basic principles of generating the control system structures are presented. The ACCCS scheme is selected which provides fulfilling a request of the user for the communication equipment setting and checking.
Keywords: control scheme, decentralized structure, centralized structure, centralized dispersed structure, hierarchical structure, queueing system, request.
WORKING OUT CONSTRUCTIVE SOLUTIONS OF EFFECTIVE COOLING SYSTEMS FOR ONBOARD AVIATION RADIO ELECTRONIC EQUIPMENT
Yu.I. Luzhavin, Federal Research & Production Center JSC «POLYOT Research & Production Company», JSC «POLYOT Research & Production Company», Deputy chief of department; luzhavin@rambler.ru
V.P. Khranilov, Federal Research & Production Center JSC «POLYOT Research & Production Company», Nizhny Novgorod State Technical University n.a. R.E. Alekseev, Professor, Ph.D.; hranilov@nntu.nnov.ru
The article deals with the aspects of designing the aviation onboard radio electronic equipment. Main principles of simulation and support of a thermal mode for the output stages of the transmitter and the unified modules of onboard computers are formulated. Designs of air cooling system with define a direction of the stream are recommended.
Keywords: simulation, cooling system, aviation onboard radio-electronic equipment, duple cells, radiator.
BUILDING OF PACKET NETWORK OF COORDINATED UNIVERSAL TIME (SU) SIGNALS DISTRIBUTION
D.К. Маzurenko, FSUE ZNIIS, Head of department, Ph.D.; ma2010@yandex.ru
On package solutions of the recommendations ITU-T G.826x and G.827x is considered UTC (SU) with the centralized signal allocation on the PTP protocol, and also its protection feature, offered as implementation for ALL-IP networks.
Keywords: timing distribution, coordinated universal time, master, slave, precision time protocol, packet delay variation.
HIGH RATE SINGLE-TONE HF DATA MODEM
M. L. Maslakov, JSC «Russian institute for power radiobuilding», research associate; maslakovml@gmail.com
The new approach to design of single-tone HF modem is reviewed in this article. The method of the testless adaptive signal correction, that allows to increase the data transfer rate, is provided. To reduce the bit error rate guard intervals are used. The possibility of practical implementation of the proposed method is shown. The results of the experiments on the single-tone HF modem in radio communication system «Pirs» are presented. The parameters of the presented modem are highly competitive with foreign analogues, moreover, some of them stand ahead.
Keywords: intersymbol interference, adaptive correction, impulse response, bit error rate.
FEATURES OF USE OF TRAVELLING-WAVE RATIO ESTIMATORS ON THE BROADBAND TRANSMITTERS OUTPUTS
V. L. Muravchenko, Research centre telecommunication technology and exploring the Navy, senior scientific employee, Dr.Sci.(Tech); alexibal@mail.ru
The substantiation of the fact, that in the transmission channel of broadband transmitters, having some inhomogeneities, different values of the traveling-wave ratio correspond to different pats of the between the inhomogeneities, is given. It is recommended, while estimating the power, supplied to the antenna from broadband transmitters, to be guided by the readings of current (voltage) sensor, mounted directly below the antenna.
Keywords: broadband transmitter, travelling-wave ratio, matching device.
COMPLEX COMMUNICATION MEANS' CONTROL SYSTEMS FOR SPECIAL PURPOSE AIRCRAFT
Yu.I. Remeshkov, Federal Research & Production Center JSC «POLYOT Research & Production Company», Director of strategic development, PhD; rem2401@rambler.ru
A.V. Ekaterinin, Federal Research & Production Center JSC «POLYOT Research & Production Company», head of department; alvek@rambler.ru
E.V. Shennikova, Federal Research & Production Center JSC «POLYOT Research & Production Company», senior engineer; elen510@rambler.ru
The article deals with the approach of building an automated communication control system (ACCS) of the integrated automated digital communication system (IADCS) for the RF Armed Forces and automated control system of a definite communication center. Related governing documents are specified and proposals for the standards and recommendations application are provided. Brief description of the TMN concept is presented, and grounds for the use of the TMN concept are given. Structural options of automated communications complex control system (ACCCS) on the basis of TMN concept are proposed.
Keywords: automated communication control system, integrated automated digital communication system, automated control system, TMN, functional architecture, physical architecture, information architecture
SPECTRUM AGGREGATED USE IN UMTS/HSPA+ AND LTE-ADVANCED SYSTEMS
V.G. Skrynnikov, «Mobile TeleSystems» OJSC, expert, Dr. Sci.(Tech); skvg@mts.ru
Lists of aggregate frequency strips for the UMTS/HSPA+ and LTE-Advanced of systems, defined by different releases of standards 3GPP are provided. Possible scenarios of their aggregation in LTE-Advanced are shown. Intermodulation products which arise at aggregation various frequency a component are described and can be potential hindrances for reception of signals.
Keywords: HSPA (High Speed Packet Access), LTE (Long Term Evolution), СА (Carrier Aggregation), DB (Dual Band), intra-band, inter-band, non-contiguous, intermodulation.
INFLUENCE OF INTERFERENCE NARROWBAND AND WIDEBAND ON MULTIFREQUENCY PULSED UWB RADIO ACCESS SYSTEMS
A.A. Frolov, Moscow Technical University of Communications and Informatics, postgraduate; frolovrt0601@yandex.ru
This article presents the results of investigation of the relative stationary concentrated narrowband noise on the work of multifrequency pulsed UWB system. During research were obtained the accord error rate of the signal / noise ratio. Provides the maximum level of system errors —
Posh = 10−3. Are determined the conditions of the feasibility and advisability of implementing the principle of joint use RFS researched system with narrowband and broadband systems.
Keywords: multi-frequency systems, pulsed systems, UWB systems, the convergence of technologies, the effect of noise, narrowband systems, deficit radio frequency spectrum.
DEVICES BASED ON SURFACE ACOUSTIC WAVES OF JSC «SPE „POLYOT“»: DEVELOPMENT, PRODUCTION, USE
F.F. Yakovlev, Federal Research & Production Center JSC «POLYOT Research & Production Company», Head of department of microelectronics, PhD; f. jackovlev@yandex.ru
V.A Belousov, Federal Research & Production Center JSC «POLYOT Research & Production Company», Head of Centre for microelectronics; bevlan44@mail.ru
V.B. Novojilova, Federal Research & Production Center JSC «POLYOT Research & Production Company», Process engineer
L.I. Sheykova, Federal Research & Production Center JSC «POLYOT Research & Production Company», Process engineer
Constructive and technological features developed and produced by public corporation «SPE» Polyot" SAW filters. Presented supernarrowband, narrowband and averageband filters on Piezoquartz, Lithium Tantalate and Lithium Niobate with operating frequencies from 40 to 1000 MHz. Types of filters: resonator on cross ties and longitudinal modes, transverse, and impedance. The main characteristics of the filter, and describes their manufacturing process.
Keywords: surface acoustic wave, filters, piezomaterials.