Now showing items 54-73 of 1680

    • MIMO — НОВАЯ ТЕХНОЛОГИЯ МНОГОАНТЕННОЙ РАДИОСВЯЗИ ДЛЯ СИСТЕМ БЕСПРОВОДНОГО ДОСТУПА 

      Банкет, В.Л.; Токарь, М.С.; Банкет, В.Л.; Токар, М.С.; Banket, V.L.; Tokar, M.S. (Київ, 2010)
      Викладено теоретичні основи методів просторово-часового кодування для багатоантен них систем радіозв’язку з використанням технології «множинний вхід — множинний вихід» Изложены теоретические основы методов пространств ...
    • MODELING ODELING OF SELF-SIVILAR TRAFFIC 

      Стрелковская, И.В.; Соловская, И.Н.; Северин, Н.В.; Стрелковська, І.В.; Соловська, І.М.; Северин, М.В.; Strelkovskaya, I.V.; Solovskaya, I.N.; Severin, N.V. (Anhalt University of Applied Sciences, 2016)
      Modeling of self-similar traffic is performed for the queuing system of G/M/1/K type using Weibull distribution. To study the self-similar traffic the simulation model is developed by using SIMULINK software package in ...
    • MODERN PROGRESS OF TV COLORIMETRY. PROPOSALS FOR REVISION REPORT ITU-R BT.2380 “ELEMENTS OF TELEVISION COLORIMETRY” 

      Gofaizen, O.V.; Pilyavskiy, V.V; Гофайзен, О.В.; Пилявский, В.В.; Гофайзен, О.В.; Пилявський, В.В. (ОНАЗ ім. О.С. Попова, 2016)
      The article presents a picture of the progress of colorimetric science from the point of view of its application in television and related video applications. It is proposed to make changes reflecting this progress in the ...
    • MULTI-PRIMARY REPRODUCTION OF TV IMAGES PRODUCED BY SDTV, HDTV AND UHDTV SYSTEMS 

      Гофайзен, О.В.; Пилявский, В.В.; Козарезнюк, А.А.; Гофайзен, О.В.; Пилявський, В.В.; Козарезнюк, А.А.; Gofaizen, O.V.; Pilyavskiy, V.V.; Kozareznyuk, A.A. (ОНАЗ ім. О.С. Попова, 2013)
      An analysis of colorimetric characteristics of television images reproduction systems based on use several primary colors, more than three is presented. The case is considered when multi-primary reproduction of images ...
    • NEW DIFFERENTIAL SIGNAL-CODE CONSTRUCTIONS WITH INTERNAL CPM SIGNALS 

      Banket, V.L.; Manakov, S.Yu.; Банкет, В.Л.; Манаков, С.Ю. (ОНАЗ ім. О.С. Попова, 2017)
      In the article the algorithm and programs for the exhaustive search of differential signalcode constructions (DSCC) for slow fading channels are developed. The generating polynomials of optimal codes are found. A methodology ...
    • NEW METHOD OF MOTIONAL FEEDBACK IN LOUDSPEAKERS 

      Суліма, М.М.; Сулима, Н.Н.; Sulima, N.N. (Хмельницький національний університет, 2014)
      Main features and differences of new method of motional feedback (MFB) were shown via linear simulation of closedbox loudspeakers. In this method the signal of MFB is summary electrical equivalent of acceleration, velocity ...
    • NOISE ELIMINATION BY THE SAVITZKY-GOLAY FILTER WITH NON-INVASIVE MONITORING OF HUMAN HEALTH 

      Vyznuk, O.M.; Baliar, V.B.; Osharovska, O.V.; Визнюк, О.M.; Баляр, В.Б.; Ошаровська, О.В.; Вызнюк, А.M.; Баляр, В.Б.; Ошаровская, Е.В. (ОНАЗ ім. О.С. Попова, 2018)
      The article highlights the details of the construction of the algorithm that helps to filter out the noise and artifacts of the musculoskeletal activity in non-invasive monitoring of the human cardiovascular system. Since ...
    • NORMATIVE SUPPORT OF EFFICIENT INTRODUCTION AND FURTHER PROGRESS OF DIGITAL TELEVISION AND MULTIMEDIA BROADCASTING TECHNOLOGIES 

      Gofaizen, O.V.; Balyar, V.B.; Pilyavskiy, V.V.; Гофайзен, О.В.; Баляр, В.Б.; Пилявский, В.В. (ОНАЗ ім. О.С. Попова, 2017)
      The transition to digital television broadcasting and further progress of digital systems and technologies in the terrestrial environment continues worldwide. An important part of this transition is the introduction of ...
    • OPTIMIZATION METHODS OF OPTICAL SIGNALS BY THE CRITERION OF THE MINIMUM OF THE PRESENTED BASE 

      Odegov, N.A.; Bahachuk, D.H.; Одегов, М.А.; Багачук, Д.Г.; Одегов, Н.А.; Багачук, Д.Г. (ОНАЗ ім. О.С. Попова, 2018)
      The article is devoted to the development of methods for improving the spectral efficiency of fiber-optic transmission systems in terms of optimizing signals in a narrowband channel. The channel width is conventionally ...
    • OUT-OF-BAND CHARACTERISTICS OF THE MICROSTRIP ANTENNA 

      Siden, S.V.; Сідень, C.В.; Сидень, С.В. (ОНАЗ ім. О.С. Попова, 2018)
      The development of wireless communication systems is accompanied by both the development of new frequency ranges and the simultaneous use of one band of frequencies by several radio services. This fact leads to an increase ...
    • THE OUTPUT CHANNAL ENERGY MAXIMIZATION FOR CODED SEQUENCES TRANSMISSION 

      Кисель, В.А.; Игошин, А.А.; Кісіль, В.А.; Ігошин, О.А.; Kisel, V.A.; Igoshin, A.A. (УНДІРТ, 1995)
      The paper deals with the design of finite duration basis signals, which maximize the power spectrum content and the autput of communication channal, whan used in coded sequences. The signal is a solution of an integral ...
    • PERFORMANCE EVALUATION OF COMMUNICATION GRIDS WITH CUT-THROUGH SWITCHING NODES 

      Shmeleva, T.R.; Шмелёва, Т.Р.; Шмельова, Т.Р. (ОНАЗ ім. О.С. Попова, 2018)
      For the performance evaluation of communication and computing rectangular grids of arbitrary size with a node that implements the cut-through packet switching technology, a model is constructed in the form of a reenterable ...
    • PROBLEMS OF INFRASTRUCTURE FUNCTIONING OF THE ELECTRONIC DIGITAL SIGNATURE IN UKRAINE 

      Kalugina, N.A.; Sakun, A.A.; Калугіна; Сакун, Г.О.; Калугина, Н.А.; Сакун, А.А. (ОНАЗ ім. О.С. Попова, 2018)
      One of the key aspects for forming the information society and universal access to network resources is information security as the most important condition of documents and information transmission by means of information ...
    • QUALITY DEGRADATION DUE TO QUADARATURE IMPAIRMENTS IN DVB-T/ DVB-T2 SYSTEMS 

      Баляр, В.Б.; Balyar, V.B. (ОНАЗ ім. О.С. Попова, 2013)
      In article study results in direction of quality degradation estimation during DVB-T/ DVB-T2 operation due to quadrature impairments with usage of parameters defined in DSTU ETSI TR 101 290. Obtained estimations will be ...
    • QUANTUM FIELD MODEL OF DATA TRANSFER IN TELECOMMUNICATION NETWORK 

      Tihonova, E.V.; Тихонова, О.В.; Тихонова, Е.В. (ОНАЗ ім. О.С. Попова, 2015)
      This paper focuses researches on telecommunications traffic engineering. A data-transfer math model introduced for the open transport network based on quantum field fundamentals. The four types of data transaction quanta ...
    • RESEARCH OF FEATURES OF KNOWLEDGE MANAGEMENT TECHNOLOGY TO IMPROVE THE EFFICIENCY OF AN ENTERPRISE 

      Petruchek, V.V.; Bubentsova, L.V.; Петручек, В.В.; Бубенцова, Л.В. (ОНАЗ ім. О.С. Попова, 2014)
      Features of the technology of knowledge management with the aim of creating the conditions in the company in which his IT infrastructure will serve as a powerful innovative resource are considered in this work. Рассмотрены ...
    • RESEARCH OF POSSIBILITIES FOR IMPROVING THE EFFIENCY OF PERFORMANCE OF WIRELESS ACCESS NETWORKS BY MULTIPATH CHANNELS 

      Ovcharenko, I.H.; Fleyta, Yu.V.; Овчаренко, І.Х.; Флейта, Ю.В.; Овчаренко, И.Х.; Флейта, Ю.В. (ОНАЗ ім. О.С. Попова, 2014)
      The object of research carried out in this work is to examine the opportunities for further improvement and development of wireless technology to increase the performance of the wireless network. A comparative analysis of ...
    • THE RESULTANT IMAGE QUALITY IN THE LIGHT-TO-LIGHT VIDEO PATH OF INFOCOMMUNICATION APPLICATIONS 

      Гофайзен, О.В.; Gofaizen, O.V. (ОНАЗ ім. О.С. Попова, 2014)
      An analysis of the problem of image quality assessment and management in light-to-light video transmission path of infocommunication applications is presented. The possibilities for further image quality enhancement and ...
    • SCIENTIFIC - METHODOLOGICAL PRINCIPLES OF ESTIMATING THE EFFICIENCY OF INNOVATIVE-INVESTMENT DEVELOPMENT PROGRAM OF COMMUNICATIONS PROVIDER 

      Бурименко, Ю.И.; Бабур, И.П.; Буріменко, Ю.І.; Бабур, І.П.; Burimenko, Yu.I.; Babur, I.P. (Одеса, 2010)
      The prospect of future research consists in studying the effect of service market vagueness factors on the program efficiency indices. Перспектива будущего исследования заключается в изучении влияния факторов неопределенности ...
    • SERVICE-ORIENTED ARCHITECTURES WITH WEB SERVICES’ DEPLOYMENT 

      Захарченко, Н.В.; Лунтовский, А.О.; Zakharchenko, N.V.; Luntovskyy, A.O. (ОНАЗ ім. О.С. Попова, 2010)
      Service-oriented architectures (SOA) based on Web Services (WS) are examined. The technology can deploy multiple available platforms but there is still the following important problem-triad: performance-security-implementation ...