Volume 3, Number 3 (2017)
V.L. Karyakin, D.V. Karyakin, L.A. Morozova
PACKET NETWORKS QUALITY ASSESSMENT TECHNOLOGIES USING THE BER INDICATOR WITHOUT IPTV SERVICE INTERRUPTION (pp. 3-7)
M.N. Koltunov, M.L. Schwartz
USING CONTROLLED PHASE DETECTOR IN A PLL SYSTEM FOR GENERATING A CLOCK SIGNAL (pp. 8-12)
I.V. Kuznetsov, P.E. Filatov
DIFFERENTIAL PULSE CODE MODULATION GROUP CODEC CONCEPTS FOR MULTICHANNEL COMMUNICATION SYSTEMS (pp. 13-18)
V.I. Eremichev, N.I. Smirnov, L.A. Tsyrenova
SELECTING A COVERING ZONE BY MOBILE SIGNALS (pp. 19-23)
DYNAMIC FEATURES RESEARCH OF THE INDOOR POSITIONING TV SYSTEM (pp. 24-28)
A.R. Safin, P.A. Stremoukhov, N.N. Udalov, A.B. Ustinov
NONISOCHRONOUS COMPENSATION SCHEME IN THE RESONATOR WITH NONLINEAR DAMPING UNDER THE EXTERNAL HARMONIC SIGNAL (pp. 29-34)
ABSTRACTS & REFERENCES
PACKET NETWORKS QUALITY ASSESSMENT TECHNOLOGIES USING THE BER INDICATOR WITHOUT IPTV SERVICE INTERRUPTION
Unlike other digital TV broadcasting systems (terrestrial, cable, satellite), the availability of interactive video services in IPTV and a wide range of additional services (video on demand, personal video recorder, etc.) make it extremely attractive for subscribers. To provide solutions that are competitive with other areas of digital TV, it is necessary to study and constantly improve the technology of building IPTV networks and the processes that occur in them. The purpose of the work is to study prospects in the technology for constructing IPTV packet networks and methods for assessing the quality of their work, which can improve the efficiency of using IPTV networks, avoiding technical interruptions and even momentary deterioration of image quality in digital television broadcasting.
1. Karjakin V.L., Kosenko S.G., Karjakin D.V. TV broadcasting technologies in multiservice data transmission networks. Samara: PSUTI. 2014. 234 p.
2. Karjakin V.L. Digital television: a textbook for universities, 2nd ed. Moscow: Solon-Press. 2013. 448 p.
3. ETSI TR 101 290 V1.3.1 (2014-07) Digital Video Broadcasting (DVB); Measurement guidelines for DVB systems // URL: http://www.dvb.org/standards (accessed: 04/03/2015). 174 p.
USING CONTROLLED PHASE DETECTOR IN A PLL SYSTEM FOR GENERATING A CLOCK SIGNAL
It is considered the possibility to ensure the effective frequency and time signals recovery by applying a controlled PLL when time signals are transmission through communication network with significant phase interference.
1. Schwartz M.L. Shevchenko D.V. Filtering the distortion of the temporal position of the clock signal through a controlled PLL system. Telecommunications. No. 9. 2009.
2. Klimov D.A., Koltunov M.N., Schwartz M.L. Control the phase of the clock signal in the TCC equipment. Collection of reports of the International scientific and technical seminar “Systems for synchronization, formation and processing of signals for communication and broadcasting.” “SYNCHROINFO 2011”. Odessa, June, 2011.
3. Koltunov M.N., Schwartz M.L., Shevchenko D.V. Patent “Time-frequency synchronization device”, RU 2341892 C2 Priority 12/21/2006, Bulletin No. 35 2008.
4. Koltunov M.N. Schwartz M.L. PLL for TSS equipment. Bulletin of UNIIS. No. 1. 2006.
DIFFERENTIAL PULSE CODE MODULATION GROUP CODEC CONCEPTS FOR MULTICHANNEL COMMUNICATION SYSTEMS
Currently, energy-deficient multi-channel data transmission systems, such as satellite systems for remote sensing of the Earth, unmanned aerial vehicles designed for aerial photography of the Earth’s surface with subsequent transmission of information to the earth, are widely used. The requirements for the characteristics of the transmission of messages in these systems is to provide multi-channel and reduce the data rate. To organize data transfer in these systems, it is proposed to use group codecs with differential pulse-code modulation of signals.
1. Kuznetsov I.V., Filatov P.E. Development of a group codec with differential pulse-code modulation of signals for multichannel energy-deficient data transmission systems. Radio Engineering. 2015. No. 2, pp. 87-91.
2. Kuznetsov I.V., Filatov P.E. Development of a group DPCM codec for satellite-based Earth sounding systems. Problems of engineering and telecommunication technologies. Optical technologies in telecommunications – XIV international scientific and technical conference. Samara. 2013, pp. 387-389.
3. Zeitlin Ya.M. Designing optimal linear systems. Leningrad: Engineering. 1973. 240 p.
SELECTING A COVERING ZONE BY MOBILE SIGNALS
V.I. Eremichev, email@example.com,
N.I. Smirnov, firstname.lastname@example.org,
Moscow Technical University of of Communications and Informatics ,
L.A. Tsyrenova, email@example.com,
Moscow State University, Moscow, Russia
The structure of cellular coverage areas is considered. The obtained formulas are given for calculating the areas of coverage zones, as well as examples of their calculations.
1. Makoveeva M.M., Shinakov Yu.S. Communication systems with moving objects. Moscow: Radio and Communications. 2002. 400 p.
2. Lokhvitsky M.S., Marder N.S. Cellular: from generation to generation. Moscow: Publishing. IKAR. 2014. 236 p.
3. Cellular network architecture: base station equipment. http://test.amobile.ru/ (accessed 01.01.2015).
4. Popov V.I. The basics of cellular communications standard GSM (2005) ROS PDF. Moscow: Eco-Trends. 2005. 294 p.
DYNAMIC FEATURES RESEARCH OF THE INDOOR POSITIONING TV SYSTEM
A.L. Tyukin, firstname.lastname@example.org,
P.G. Demidov Yaroslavl State University, Yaroslavl, Russia
Vision systems are designed and in many cases already solve problems of supplementing or replacing a person in areas of activity related to the collection and analysis of visual information. The level of their use in applied fields is one of the most striking and clear integral indicators of the level of development of high technologies in various industries. One of the relevant today are automatic or authorized television systems. One of such systems is the lighthouse robot positioning system. To date, global navigation problems have been successfully solved, but its use is limited to a direct data channel. When it is necessary for the robot to navigate indoors, the use of satellite navigation systems becomes impossible. This is due to the fact that indoor work is characterized by a wide variety of interference. In this case, the environment is considered poorly conditioned, with unreliable communication channels, with fundamental inaccuracy and uncertainty. The problem arises of studying various orientation methods that are able to work in such an environment.
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4. Ivanov A.V. Navigation systems of moving ground objects. Information processing algorithms in an angular channel. Radio Engineering. 2013. No. 4.
5. Abdrakhmanova A.M., Namiot D.E. The use of two-dimensional barcodes to create a positioning and navigation system in a room. Applied Informatics. No. 1. St. Petersburg: Lan. 2013, pp. 31-39.
6. Tyukin A., Lebedev I., Priorov A. The development and research of the indoor navigation system for a mobile robot with the possibility of obstacle detection. Open Innovations Association (FRUCT16). 2014.16th Conference of, pp. 115-122. Oct 27-31 2014.
7. Tyukin A.L., Lebedev I.M., Priorov A.L. Development and evaluation of the quality of the algorithm for digital processing of television images for positioning in closed space. Nonlinear World. 2014. Vol. 12. No. 12, pp. 26-30.
NONISOCHRONOUS COMPENSATION SCHEME IN THE RESONATOR WITH NONLINEAR DAMPING UNDER THE EXTERNAL HARMONIC SIGNAL
A.R. Safin, email@example.com
National Research University «MPEI», Moscow, Russia
National Research University «MPEI»; National Research University «BMSTU», Moscow, Russia
National Research University «MPEI», Moscow, Russia
Saint Petersburg Electrotechnical University “LETI”, Saint Petersburg , Russia
The theory and technology of microwave radio transmitting devices have undergone significant changes in recent years due to the rapid miniaturization of electronic components and the emergence of a new element base. Examples are various microwave devices (filters, oscillators, etc.), consisting of thin magnetic films and based on the propagation of magnetostatic (spin) waves. Despite significant progress in this area, there are a number of theoretical and experimental problems that have not been solved in the literature. One of the problems is the possibility of limiting the nonlinear shift of the resonant frequency of oscillations using nonlinear positive attenuation. This task is also important for nonlinear filters and self-oscillators of a different physical nature, which have non-isochronism (the dependence of the oscillation frequency on the amplitude). The possibility of limiting the nonlinear shift of the resonant frequency of oscillations in a filter with nonlinear positive loss resistance and non-isochronism under periodic external influence is studied, which is a radio-technical model of the filter. Such a problem was not previously considered in the theory of oscillations and its applications.
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