Now showing items 1-20 of 278

    • 3D IMAGE MESH ENTROPY CODING 

      Samus, N.S.; Osharovskaya, E.V.; Самусь, Н.С.; Ошаровська, О.В.; Самусь, Н.С.; Ошаровская, Е.В. (ОНАЗ ім. О.С. Попова, 2014)
      In this article we have introduced a compressed representation for triangular meshes. Because proximity in this vertex spanning tree often implies geometric proximity of the corresponding vertices, we can use ancestors ...
    • AB INITIO MODELING OF THERMODYNAMICS OF A FRUIT TREE FLOWER:THE FIRST STAGE OF THE MODEL 

      Chepok, A.O.; Yevtushenko, N.I.; Чепок, А.О.; Евтушенко, Н.И. (Хмельницький національний університет, 2017)
      A bionic model of thermodinamics processes in flowers of fruit trees is proposed. This model takes into account a number of physical and morfological properties of fruit tree flowers and some environmantal factors. On the ...
    • ABOUT EXPEDIENCY OF USE OF THE REEMISSION OF PHOTONS FOR INCREASING LIGHT INTENSITY OF MULTYLAYER LEDS THAT CAN BE EXPOSED TO RADIATION 

      Irkha, V.I.; Ірха, В.І.; Ирха, В.И.; Gorbachev, V.E.; Горбачов, В.Е.; Горбачев, В.Э. (Національний університет "Львівська політехніка", 2010)
      On the basis of the obtained experimental regular dependences the probable causes of the degradation of emission of multilayer GaAlAs-LEDs after gamma irradiation are considered.
    • ABOUT THE TRANSFORMATION OF THE ORGANIZATIONAL MANAGEMENT STRUCTURE OF ENTERPRISES 

      Orlov, V.M.; Obodovskyi, Yu.V.; Орлов, В.М.; Ободовський, Ю.В.; Орлов, В.Н.; Ободовский, Ю.В. (ОНАЗ ім. О.С. Попова, 2018)
      The article contains a theoretical analysis of the content of the organizational structure of management concept. It is shown that the structure of each enterprise is unique, but, a considerable variety of structures ...
    • ACTIVE FILTER FOR OPTIMUM NONCOHERENT DEMODULATION OF CONTINUOUS PHASE FREQUENCY MODULATION SIGNALS 

      Banket, V.L.; Manakov, S.Yu.; Банкет, В.Л.; Манаков, С.Ю. (ОНАЗ ім. О.С. Попова, 2016)
      In article the algorithm and structure of the active filter-demodulator for continuous phase frequency modulation signals are developed. В статті розроблені алгоритм та структура активного фільтра-демодулятора сигналів ...
    • AN ADAPTIVE CONTROL SYSTEM OF TELECOMMUNICATION NETWORK RESOURCES BASED ON FUZZY LOGIC 

      Врублевський, А.Р.; Врублевский, А.Р.; Vrublevskyi, A.R.; Лісовий, І.П.; Лесовой, И.П.; Lesovoy, I.P.; Пилипенко, Г.В.; Пилипенко, Г.В.; Pylypenko, G.V. (ОНАЗ ім. О.С. Попова, 2019)
      In modern telecommunication systems and networks, causal relationships in the gnoseological (cognitive) plan are not clearly traceable, which leads to uncertainty when choosing or building a mathematical model due to ...
    • ADAPTIVE DECOMPOSION OF TV IMAGES 

      Gofaizen, O.V.; Гофайзен, О.В.; Гофайзен, О.В.; Osharovska, O.V.; Ошаровська, О.В.; Ошаровская, О.В.; Patlayenko, M.O.; Патлаєнко, М.О.; Патлаенко, Н.А.; Pyliavskyi, V.V.; Пілявський, В.В.; Пилявский, В.В. (UkrMiCo, Odessa, 2017)
      The paper presents the results of modeling adaptive decomposition for ultra-high definition television, which provides image compression without subjective deterioration of quality. The decomposition of the images was ...
    • ALGORITHM FOR ESTIMATING AND CORRECTING MULTIPATH CHANNEL PARAMETERS FOR DEMODULATION OFDM SIGNALS 

      Іващенко, П.В.; Иващенко, П.В.; Ivaschenko, P.V.; Орябінська, О.О.; Орябинская, О.А.; Oryabinska, О.О. (ОНАЗ ім. О.С. Попова, 2019)
      OFDM signals form the basis of the radio interface of 4G mobile networks. Among the most well-known systems using OFDM signals, the LTE / LTE-Advanced, IEEE 802.11, IEEE 802.16 family, as well as DVB-T, DVB-T2 digital ...
    • ANALYSIS AND COMPARISON OF CONNECTIVITY AND GEOMETRY MESH COMPRESSION IN 3D OBJECTS 

      Samus, N.S.; Самусь, Н.С. (ОНАЗ ім. О.С. Попова, 2017)
      In this article the different connectivity and geometry compression algorithms of 3D objects were analyzed and compared. Mesh connectivity is completely unknown to the encoder before the compression. Face Fixer, Edgebreaker ...
    • ANALYSIS OF EQUIVALENT APERTURE OF CURVILINEAR ANTENNA ARRAYS 

      Protsenko, M.B.; Iaremenko, A.A.; Проценко, М.Б.; Яременко, А.А. (ОНАЗ ім. О.С. Попова, 2014)
      The article presents the results of the analysis of equivalent aperture of curvilinear antenna arrays on the basis of the obtained mathematical models. The equivalent aperture of the curvilinear antenna array is a projection ...
    • ANALYSIS OF HIGH AVAILABILITY IN SOFTWARE-DEFINED NETWORKING 

      Стрелковська, І.В.; Стрелковская, И.В.; Strelkovska, I.V.; Вермсер, Д.; Вермсер, Д.; Wermser, D.; Білінська, О.В.; Билинская, О.В.; Bilinska, O.V. (ОНАЗ ім. О.С. Попова, 2017)
      The architecture of SDN was considered, for which were determined the logical structure and principles of functioning; The problem of estimating the characteristic of QoS, throughput and the probability of errors in the ...
    • ANALYSIS OF NONLINEAR EFFECTS IN FOTS WITH WAVELENGTH DIVISION MULTIPLEXING 

      Паламаренко, О.О.; Паламаренко, О.О.; Palamarenko, O.O.; Овчинніков, М.Д.; Овчинников, М.Д.; Ovchynnikov, M.D.; Решетнікова, О.С.; Решетникова, О.С.; Reshetnikova, O.S. (ОНАЗ ім. О.С. Попова, 2015)
      In this work nonlinear effects occurring in optical fiber transmission system with wavelength division multiplexing, given the examples of the most common effects, analyzed reasons of their origin, the possibility of ...
    • COHERENT DETECTION OF TWO-DIMENSIONAL DIGITAL MODULATION SIGNALS 

      Оryabinska, О.О.; Rozenvasser, D.M.; Орябінська, О.О.; Розенвассер, Д.М.; Орябинская, О.А.; Розенвассер, Д.М. (ОНАЗ ім. О.С. Попова, 2018)
      Two-dimensional digital modulations require coherent detection to eliminate phase uncertainty. The main problem is that it is necessary to exactly match the frequencies and initial phases of the carrier and reference ...
    • COMPENSATION MODAL DISPERSIONS OPTICAL FIBER BY ROTATION RANKED GLASS MICROSTRUCTURE 

      Lesovoy, I.P.; Лісовий, І.П.; Лесовой, И.П.; Odintsov, N.N.; Одінцов, М.М.; Одинцов, Н.Н.; Stashchuk, O.M.; Стащук, О.М.; Стащук, О.М. (Національний університет "Львівська політехніка", 2010)
      The anisotropic components find in fiber-optic transmission system of the issue wide using. Using characteristic the anisotropic medium for compensation chromatic dispersion of optical fiber (OF) is of considerable interest ...
    • COMPENSATION OF CROSSTALK IN THE MULTI-BUNDLE DOMESTIC TELEPHONE CABLES 

      Оreshkov, V.І.; Орєшков, В.І.; Орешков, В.И. (ОНАЗ ім. О.С. Попова, 2017)
      Mathematical models of the «vectoring» crosstalk compensation system for TPP-50х2 and TPP-100х2 multi-bundle telephone cables are developed. Simplified calculation formulas for the total power of the far end crosstalk ...
    • DEVELOPMENT OF RECOMMENDATIONS FOR CONSTRUCTION OF TELEMEDICINE NETWORKS AT LOCAL, REGIONAL AND NATIONAL LEVELS 

      Рябова, Ю.Д.; Рябова, Ю.Д.; Riabova, Yu.D.; Розенвассер, Д.М.; Розенвассер, Д.М.; Rozenvasser, D.M. (ОНАЗ ім. О.С. Попова, 2019)
      In this work, standard design solutions were developed for building telemedicine networks at local, regional and national levels taking into account various initial data.
    • EFFECT OF OPTSCAL CHANNAL BANDWIDTH ON THE IMMUNSTI OF NRZ AND RZ LINEAR CODES 

      Breskin, V.A.; Mazur, A.D.; Rozenvasser, D.M.; Брескин, В.А.; Мазур, А.Д.; Розенвассер, Д.М.; Брескін, В.О.; Мазур, А.Д.; Розенвассер, Д.М. (TCSET, Lviv-Slavske, Ukraine, 2012)
      A comparative assessment of the required bandwidth of the optical channel of FOTS using NRZ and RZ linear codes is given in this paper.
    • EFFICIENCY EVALUATION OF THE "VECTORING" SYSTEM APPLICATION ON THE CONNECTING LINES DURING MODERNIZATION OF THE RURAL TELEPHONE NETWORK 

      Оreshkov, V.І.; Орєшков, В.І.; Орешков, В.И. (ОНАЗ ім. О.С. Попова, 2018)
      The urgency of the "digital divide" problem is a global problem. That the problem is in particular and acute in Ukraine, is described in the article. It is proposed to use VDSL2 technology for modernization of the rural ...
    • FTTX TESTING AND IMPLEMENTATION IN MODERN TRIPLE-PLAY SERVICE PLATFORMS 

      Овчинніков, М.; Овчинников, М.; Ovchinnikov, M.; Паламаренко, А.; Паламаренко, А.; Palamarenko, A.; Решетнiкова, О.С.; Решетникова, О.С.; Reshetnikova, O.S. (ОНАЗ ім. О.С. Попова, 2016)
      In this work implementation benefits of FTTx architecture at providing modern services have been described, as well as technical testing of main transmission environment for intended network functioning.
    • IMPLEMENTATION OF A DTW ALGORITHM FOR AN ESTIMATION OF THE ECG SIGNALS 

      Мазур, Г.Д.; Мазур, А.Д.; Mazur, A.D. (ОНАЗ імені О.С. Попова, 2015)
      Dynamic Time Warping algorithm and its types were described in this work. DTW distance was compared to Euclidian distance. Software with implementation of DTW algorithm was done in MatLab environment for comparison of two ...