Now showing items 1-20 of 473

    • ANALYSIS OF LTE-A NETWORK THROUGHPUT TAKING INTO ACCOUNT THE SPATIAL LOCATION OF MOBILE STATIONS 

      Сідень, С.В.; Сидень, С.В.; Siden, S.V.; Маковеєнко, Д.О.; Маковеенко, Д.О.; Makoveenko, D.O.; Пилявський, В.В.; Пилявский, В.В.; Pyliavskyi, V.V. (ОНАЗ ім. О.С. Попова, 2020)
      The use of adaptive antenna arrays (AAR) to increase the throughput in LTE-A mobile networks is proposed and the benefits of its use compared to the standard type of base station antenna are analyzed. The simulation of ...
    • THE APPLICABILITY OF PID-CONTROLLERS TO THE LOUDSPEAKERSWITH AN ELECTROMECHANICAL FEEDBACK 

      Сулима, Н.Н.; Суліма, М.М.; Sulima, N.N. (ОНАЗ ім. О.С. Попова, 2013)
      In this paper, a preliminary analysis of the possibilities of application of PID controllers for management under coverage loudspeaker electromechanical feedback (MFB). It is shown that for certain classes of MFB use PID ...
    • ASSOCIATIVE RELATIONS IN THE ASSESMENT 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.О.; Pyliavskyi, V.V.; Пілявський, В.В.; Пилявский, В.В. (Белорусский государственный университет информатики и радиоэлектроники, 2017)
      With the creation and international standardization HDTV and UHDTV systems becomes an actual task of specification test signals to be used in the construction and maintenance video path and equipment of this systems. In ...
    • CHARACTERISTICS OF VIBRATOR ARRAYS DIRECTIVITY ON HARMONICS OF MAIN FREQUENCY 

      Цалієв, Т.А.; Цалиев, Т.А.; Tsaliev, Т.А.; Вакарчук, А.О.; Вакарчук, А.А.; Vakarchuk, А.О. (ОНАЗ ім. О.С. Попова, 2020)
      Antenna patterns representing dependences of the directivity factor (DF) on angular coordinates for arrays formed from Yagi-Uda aerials are considered and discussed. The results of computer modelling are based on the ...
    • COLOR SPACES OF VIDEO SEQUENCES DIGITAL CODING SYSTEMS 

      Gofaizen, O.V.; Pyliavskyi, V.V.; Гофайзен, О.В.; Пилявский, В.В.; Гофайзен, О.В.; Пилявський, В.В. (ОНАЗ ім. О.С. Попова, 2016)
      In the work it is built generalized description and comparison of color spaces defined by standards for digital encoding of video sequences MPEG-2 Video, MPEG-4 Visual, MPEG-4 AVC and MPEG-H HEVC taking into account the ...
    • COLOUR APPEARANCE METRIC FOR USE IN VIDEO APPLICATIONS 

      Gofaizen, O.V.; Pyliavskyi, V.V.; Гофайзен, О.В.; Пилявський, В.В.; Гофайзен, О.В.; Пилявский, В.В. (ОНАЗ ім. О.С. Попова, 2017)
      The article presents a description of the new CAM16 color appearance model developed by the CIE to replace the currently acting model CIECAM02, improved with respect to the correctness of the algorithm for its ...
    • CONSTRUCTION OF EQUIDISTANT GRID IN UNIFORM COLOR SPACE, UNIFORMLY FILLING COLOR GAMUT TRANSMITTED AND REPRODUCED BY TELEVISION SYSTEMS 

      Гофайзен, О.В.; Пилявский, В.В.; Гофайзен, О.В.; Пилявський, В.В.; Gofaizen, O.V.; Pyliavskyi, V.V. (ОНАЗ ім. О.С. Попова, 2013)
      A method of constructing a grid of colors in uniform space that uniformly fills color gamut transmitted and reproduced by television systems. Coordinates and position of the mesh of colors in color spaces CAM02-USC, CIECAM02 ...
    • CONSTRUCTION OF POLAR COORDINATES GRID IN UNIFORM COLOR SPACE, UNIFORMLY FILLING AREA OF EXISTING COLORS, PARTICULARLY OF COLOR GAMUT TRANSMITTED AND REPRODUCED BY TELEVISION SYSTEMS 

      Гофайзен, О.В.; Гофайзен, О.В.; Gofaizen, O.V.; Пилявский, В.В.; Пілявський, В.В.; Pilyavskiy, V.V. (ОНАЗ ім. О.С. Попова, 2015)
      A method of constructing polar coordinates grid in uniform color space, uniformly filling area of existing colors, particularly of color gamut transmitted and reproduced by television systems, is proposed. Coordinates and ...
    • DEVELOPMENT OF ITU HANDBOOK ON TV COLORIMETRY 

      Гофайзен, О.В.; Гофайзен, О.В.; Gofaizen, O.V. (ОНАЗ ім. О.С. Попова, 2012)
      Current progress report of development of ITU-R Handbook with indication of current updates and changes is presented. This report was provided on previous ITU-R Working Party 6C meeting.
    • DEVELOPMENT OF THE ALGORITHM OF VIDEO IMAGE ADAPTATION TO SPECTRAL POWER DISTRIBUTION OF ILLUMINANTS 

      Пилявський, В.В.; Пилявский, В.В.; Pyliavskyi, V.V. (PC TECHNOLOGY CENTER, Ukrainian State University of Railway Transport, 2019)
      Зроблено пропозиції щодо подальшого прогресу відеотехнологій, питання, які потрібно вирішити задля реалізації цього прогресу та можливі шляхи впровадження в реальні пристрої спеціального та загального застосування. ...
    • THE DYNAMICS OF THE INTERFERENCE SITUATION IN THE DOWNLINK DIRECTION OF THE MOBILE COMMUNICATION NETWORK WITH CDMA TECHNOLOGY 

      Сукачов, Е.О.; Сукачев, Э.А.; Sukachev, Е.А.; Вакарчук, А.О.; Вакарчук, А.А.; Vakarchuk, А.О. (ОНАЗ ім. О.С. Попова, 2019)
      The work is devoted to the investigation of inter-cell interference in the radio access network, provided that subscribers are moving in cells along the route indicated earlier. Very often, the trajectory of the movement ...
    • EFFICIENCY STUDY OF ALGORITHMS APPLIED IN DVB-T/ DVB-T2 SYSTEMS AT PRESENCE OF PHASE NOISE 

      Баляр, В.Б.; Balyar, V.B. (ОНАЗ ім. О.С. Попова, 2014)
      In article study results in direction of efficiency estimation of algorithms used in DVB-T/ DVB-T2 systems at presence of phase noise with parameters defined in DSTU ETSI TR 101 290. Obtained estimations will be used as ...
    • FEATURES OF USE COLOR TRANSFORMATIONS IN MATLAB 

      Пилявський, В.В.; Пилявский, В.В.; Pyliavskyi, V.V. (Національний авіаційний університет, 2019)
      Modern progress of technology is integral with the use of visualization controls, show of the results of operation or diagnosis. The scope of application of visualization tools is the widest military applications to medical, ...
    • FOURIER ANALYSIS OF THE TEXTURE OF HIGH-DEFINITION IMAGES 

      Osharovskaya, E.V.; Ошаровська, О.В.; Ошаровская, Е.В.; Patlayenko, N.A.; Патлаєнко, М.О.; Патлаенко, Н.А.; Pyliavskyi, V.V.; Пілявський, В.В.; Пилявский, В.В. (Львівський національний університет ім. Івана Франка, 2018)
      This paper presents the results of measuring the signal-to-noise ratio at the boundary of object contours in highdefinition images after compression of the original digital stream based on the Fourier transform and the ...
    • FRACTAL CODING OF VIDEO SEQUENCES BY GENETIC ALGORITHM 

      Osharovskaya, E.V.; Patlaenko, N.A.; Ошаровська, О.В.; Патлаєнко, М.О.; Ошаровская, Е.В.; Патлаенко, Н.А. (ОНАЗ ім. О.С. Попова, 2017)
      The results of application of the modified genetic algorithm of fractal coding to still images and video sequences are presented. The dependence of the compression coefficient on the size of the rank block is obtained. ...
    • H-ФРАКТАЛЬНЫЕ АНТЕННЫ 

      Цалієв, Т.А.; Цалиев, Т.А.; Tsaliev, Т.А.; Король, Е.Р.; Король, Э.Р.; Korol, E.R. (ОНАЗ ім. О.С. Попова, 2014)
      В данной работе произведен анализ потенциала применения фрактальных антенн на примере антенных элементов H-фрактальной геометрии.
    • MATCHING OF SOME COLOR SPACES FOR USE IN DIFFERENT INDUSTRIES AND COLOR SPACES OF TELEVISION SYSTEMS 

      Gofaizen, O.V.; Pyliavskyi, V.V.; Гофайзен, О.В.; Пилявський, В.В.; Гофайзен, О.В.; Пилявский, В.В. (ОНАЗ ім. О.С. Попова, 2013)
      The comparison of the colorimetric characteristics of the systems used in different color image industries, such as digital television systems of high and ultrahigh-definition, digital photo printing systemы RIMM-ROMM and ...
    • MEDIA CONTENT PROTECTION BY 3D MESH WATERMARKING TECHNIQUE 

      Ошаровська, О.; Ошаровская, Е.; Osharovska, О.; Солодка, В.; Солодкая, В.; Solodka, V. (ОНАЗ ім. О.С. Попова, 2020)
      The paper analyzes the construction of a system for embedding watermarks in media content. The option is considered when three-dimensional objects defined by the coordinates of the mesh vertices that are present in the ...
    • THE METHOD OF DETERMINATION BOUNDARIES IN UNIFORM COLOR SPACE OF COLOR GAMUT TRANSMITTED AND REPRODUCED BY TV AND OTHER IMAGING SYSTEMS 

      Гофайзен, О.В.; Пилявский, В.В.; Гофайзен, О.В.; Пилявський, В.В.; Gofaizen, O.V.; Pyliavskyi, V.V. (ОНАЗ ім. О.С. Попова, 2014)
      A method of definition color gamut, transmitted and reproduced by TV systems and by other video applications, built on the basis of use of the additive colorimetry. Представлен метод построения области цветов, передаваемых ...
    • MODERN COLOR APPEARANCE MODELS AS A COMPONENT OF VIDEO TECHNOLOGIES 

      Гофайзен, О.В.; Гофайзен, О.В.; Gofaizen, O.V.; Пилявський, В.В.; Пилявский, В.В.; Pyliavskyi, V.V. (Державний університет інтелектуальних технологій і зв'язку, 2021)
      A comparative analysis of the CIECAM02 and CIECAM16 color appearance models is given in terms of their use for research, development and performance evaluation of applications for various purposes, including the assessment ...