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Now showing items 176-195 of 3795

    • 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 ...

    • OVERVIEW OF MODELING TECHNIQUES FOR OPTICAL TRANSMISSION SYSTEMS 

      Коновалов, О.В.; Коновалов, О.В.; Konovalov, O.V.; Шапа, О.В.; Шапа, О.В.; Shapa, O.V.; Решетнікова, О.С.; Решетникова, О.С.; Reshetnikova, O.S. (ОНАЗ ім. О.С. Попова, 2015)
      In this work we’ve investigated physical properties of Raman amplification, applied it to a system model, such as ASK or MSK, and compare results against different system configurations to determine if the ROA is beneficial ...

    • PARAMETRIC COLORED PETRI NET MODEL OF COMPUTING GRIDS 

      Шмелёва, Т.Р.; Шмельова, Т.Р.; Shmeleva, T.R. (ОНАЗ ім. О.С. Попова, 2014)
      A parametric model of computing grids in the form of a colored Petri net was developed, which consists of a fixed number of Petri net nodes and is invariant regarding the topology of a grid, number of attached nodes and ...

    • PARAMETRIC PETRI NET MODEL FOR ETHERNET PERFOMANCE AND QOS EVALUATION 

      Zaitsev, D.A.; Зайцев, Д.А.; Зайцев, Д.А.; Shmeleva, T.R.; Шмельова, Т.Р.; Шмелёва, Т.Р. (University of Karlsruhe, 2009)
      Parametric model of switched Ethernet in the form of a colored Petri net is presented. The model is invariant regarding the structure of the network; it has fixed number of nodes for any given tree-like network. Special ...

    • PBB EFFICIENCY EVALUATION VIA COLORED PETRI NET MODELS 

      Vorobiyenko, P.P.; Воробієнко, П.П.; Воробиенко, П.П.; Guliaiev, K.D.; Гуляєв, К.Д.; Гуляев, К.Д.; Zaitsev, D.A.; Зайцев, Д.А.; Зайцев, Д.А.; Shmeleva, T.R.; Шмельова, Т.Р.; Шмелёва, Т.Р. (Scientific Research Publishing Inc., 2010)
      Basic components of Provider Backbone Bridge (PBB) network models were constructed: PBB interior switch, PBB edge switch—with the dynamic filling up of address tables. The modeling of PBB networks was implemented. The ...

    • PECULIARITIES OF TESTING OF MEASUREMENT INSTRUMENT SOFTWARE IN UKRAINE 

      Величко, О.М.; Величко, О.Н.; Velychko, O.M.; Грабовський, О.В.; Грабовский, О.В.; Hrabovskyi, O.V.; Гордієнко, Т.Б.; Гордиенко, Т.Б.; Gordiyenko, T.B. (IFSA Publishing, Spain, 2019)
      The developed special SW testing methodology of measuring instruments software (MI SW) with taking into account all essential requirements of OIML document and WELMEC guidelines was presented. This methodology contains the ...

    • 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 ...

    • A PHYSICAL MODEL FOR MOLECULAR COMMUNICATION 

      Сміренська, С.С.; Смиренская, С.С.; Smirenskaya, S.S.; Шмельова, Т.Р.; Шмелёва, Т.Р.; Shmeleva, T.R. (ОНАЗ ім. О.С. Попова, 2013)
      This work is devoted to a physical model for molecular communication. In this paper the types of molecular communication architecture represented. On example of one type of molecular communication architecture the physical ...

    • PHYSICAL WORKABILITY AS THE BASE OF STUDENTS FUNCTIONAL POTENTIALS 

      Самокиш, І.І.; Самокиш, И.И.; Samokysh, І.І. (Харківський національний педагогічний університет імені Г.С. Сковороди, 2016)
      Purpose: to assess the level of students’ physical workability and find its connection with physical fitness. Material: we tested 150 students (86 girls and 64 boys) of 17-19 years’ age. All students were in main health ...

    • PLANNING OF BROADBAND SUBSCRIBER ACCESS NETWORK ON STANDART 802.11g 

      Шумліна, Д.О.; Шумлина, Д.О.; Shumlina, D.O.; Бабіч, Ю.О.; Бабич, Ю.О.; Babich, Yu.O. (ОНАЗ ім. О.С. Попова, 2011)
      In this article is considered the deployment of the wireless Wi-Fi network, based on the IEEE 802.11g standart on the example of the existed city. Also are performed researching and selecting of the necessary equipment and ...

    • POLARIZATION MODE DISPERSION COMPENSATOR BASED ON ANISOTROPIC OPTICAL FIBER 

      Стащук, О.М.; Стащук, О.М.; Staschuk, О.М.; Степанов, Д.М.; Степанов, Д.Н.; Stepanov, D.M.; Багачук, Д.Г.; Багачук, Д.Г.; Bahachuk, D.H. (ОНАЗ ім. О.С. Попова, 2020)
      In this paper, a new method of polarization mode dispersion (PMD), which can significantly limit the speed and range of transmission of fiber optic transmission systems (FOTS), compensation was developed and analyzed. In ...

    • POSSIBLE VIDEO SEQUENCES CODING APPROACH 

      Гофайзен, О.В.; Гофайзен, О.В.; Gofaizen, O.V.; Ошаровська, О.В.; Ошаровская, Е.В.; Osharovska, O.V.; Патлаєнко, М.О.; Патлаенко, Н.А.; Patlayenko, M.O.; Пілявський, В.В.; Пилявский, В.В.; Pilavskiy, V.V.; Якоб, М.І.; Якоб, М.И.; Iacob, M.I. (ОНАЗ ім. О.С. Попова, 2019)
      A possible approach to the encoding of video sequences based on the separate implementation of interframe and intraframe decorrelation is proposed. At the interframe decorrelation stage, a block representation structure ...

    • PREDICTING TELEMETRIC DATA OF IoT DEVICES 

      Стрелковська, І.В.; Стрелковская, И.В.; Strelkovska, I.V.; Соловська, І.М.; Соловская, И.Н.; Solovska, I.M.; Стрелковська, Ю.; Стрелковская, Ю.; Strelkovska, Yu. (ОНАЗ ім. О.С. Попова, 2020)
      The solution of the problem of predicting telemetry data of IoT devices obtained using the Open Source resource Net Flow Analyzer is considered. The spline extrapolation method based on the cubic Hermite spline is used for ...

    • PREDICTION OF VIDEO-TRAFFIC CHARACTERISTICS IN IoT/5G NETWORK 

      Стрелковська, І.В.; Стрелковская, И.В.; Strelkovska, I.V.; Снігур, Н.О.; Снигур, Н.О.; Snigur, N.O. (ОНАЗ ім. О.С. Попова, 2020)
      Abstract. The characteristics of traffic service quality in the IoT/5G network are considered. Spline-extrapolation method was used to predict traffic parameters and quality characteristics of its service. The results of ...

    • PRINCIPLES AND METHODS QUANTUM THEORY OF MEASUREMENTS OF MEASURING CONVERGENCE PARAMETERS OF RADIO SIGNALS 

      Троцишин, І.В.; Троцишин, И.В.; Trotsyshyn, I.V. (ОНАЗ ім. О.С. Попова, 2018)
      The report is devoted to the description of the methodology and principles of a new direction in the theory and practice of measurements - the quantum theory of measuring the transformation of physical quantities, which ...

    • THE PRINCIPLES OF THE CONTENT DELIVERY NETWORK CONSTRUCTION 

      Яковенко, Е.А.; Яковенко, Э.А.; Yarovenko, Е.А.; Царьов, Р.Ю.; Царёв, Р.Ю.; Tsaryov, R.Yu. (ОНАЗ ім. О.С. Попова, 2015)
      Is considered the principles of the Content Delivery Network construction, the problems, that occur during the design of the network architecture, the disadvantages and advantages of Content Delivery Network, suggestions ...

    • PRINCIPLES OF TRAINING AND PRODUCTION ACTIVITIES OF EDUCATIONAL ORGANIZATIONS 

      Станкевич, І.В.; Станкевич, И.В.; Stankevych, I.V. (Agenda Publishing House, United Kingdom, 2016)
      In this paper was analyzed the existing approaches to understanding today management principles. Based on the summarization of sources, both legislative and popular science author defines and systematization of general and ...

    • THE PROBLEM OF CHOICE THE IOT PLATFORM FOR DESIGN SOLUTION IN THE DIFFERENT SPHERES 

      Горін, М.А.; Горин, М.А.; Gorin, M.A.; Бойченко, Ю.Р.; Бойченко, Ю.Р.; Boychenko, Y.R.; Сергієнко, Т.М.; Сергиенко, Т.М.; Sergienko, T.M.; scientific adviser – associate professor Tsaryov, R.Yu. (ОНАЗ ім. О.С. Попова, 2018)
      The paper describe the problem of the selection of an adequate IoT platform for the creation of design solutions in the difference spheres such as a Smart city, Smart House, eHealth. There is described the structure of IoT ...