DIGITAL TERRESTRIAL BROADCASTING: FEATURES OF IMPLEMENTATION AND ISSUES OF USING RADIO BROADCASTING

2021 ◽  
Author(s):  
А.В. ЛАШКЕВИЧ
Keyword(s):  
Multimedia Information ◽  
Economic Factors ◽  
High Quality ◽  
Digital Radio ◽  
Technical Requirements ◽  
Radio Broadcasting ◽  
Modern Development ◽  
Equipment Production ◽  
Geographical Characteristics ◽  
Digital Sound

В статье проанализированы основные характеристики существующих систем цифрового звукового и мультимедийного радиовещания, преимущества цифрового радиовещания как технологии передачи звуковой и мультимедийной информации, особенности использования различных диапазонов частот, влияние социальных, технико-экономических факторов и географических особенностей на технические требования к сетям радиовещания. Рассмотрены вопросы организации высококачественного радиовещания, способного привлечь аудиторию в условиях современного развития технологий. Определены основные задачи в области производства приемного оборудования для цифрового радиовещания. The article analyzes the main features of existing digital sound and multimedia broadcasting, advantages of digital radio as a technology for transmitting sound and multimedia information, benefits of different frequency ranges for digital radio, the influence of social, technical, and economic factors, and geographical characteristics on the technical requirements for broadcasting networks. The issues of the organization of high-quality radio broadcasting capable to attract an audience in conditions of the modern development of technologies are considered. The main tasks in the field of digital radio receiving equipment production are determined.

scholarly journals METHOD OF IMITATION OF MODERN PASSPORT DOCUMENTS WITH THE USE OF THE NEWEST PRINTING TECHNOLOGIES

2019 ◽  
pp. 427-434
Author(s):  
Keyword(s):  
Document Image ◽  
Ultraviolet Rays ◽  
High Quality ◽  
Peak Loads ◽  
Modern Development ◽  
Technical Examination ◽  
Visible Images ◽  
Analysis Of Results ◽  
State Boundary ◽  
Short Time

Modern development of printing technologies, which allows for short time and with high quality to represent different properties of visible images, instrumental in the improvement of existent methods of imitation of documents. Therefore, with the purpose of high-quality lead through of technical examination of documents it is necessary read-throughs of permanent analysis of information about found out the methods of imitation. Analysis of results forensic science Forensic document center State border guard service of Ukraine testifies to the increase of cases of the use of counterfeit passport documents (passports of Israel, Turkey, France, Sweden) with the inflicted photo of bearer on laminate tape which covers the page of information. Thus, closeness of layer of dye which was used for causing of the second photo did not enable to discover primary in the infra-red rays of light. The second photo was inflicted by finishing printing over laminate tape with the use of stream seal, without sorting out of book block. The analysis of technical descriptions of modern facilities of the contactless printing to show that for the imitation of passports of citizens, countries listed above, used technology of the so-called «UF-printing». Its feature is application in the process of seal of effect of polymerization blackened (paints) under the action of ultraviolet rays. Such technology enables, including polymeric tapes to inflict any images practically on any material, and also allows to create high-quality relief images. Taking into account possibilities technologists of «UF-printing», it can be used with the purpose of high-quality imitation of deep print and relief stamping. Application of this technology for the imitation of documents can complicate finding out imitations during realization of border control, especially, in the clock of peak-loads in the points of admission through a state boundary. And also increases economic feasibilities of offenders for realization of imitation of different documents. In modern terms at the improvement of facilities of defense of documents, the methods of their imitation will be perfected constantly. There is a problem of shortage of information about such imitations. Therefore the actual is become by the necessity of modernization of existing and development of new informative materials in relation to the technological features of making of different sort of documents with the use of methods seals which determine properties of visible in a document image. Key words: passport documents, printing technologies, fake.

RESULTS OF THE DRM SIMULCAST FIELD TRIALS IN 87.5-108 MHZ BAND

2021 ◽  
Author(s):  
С.А. СОКОЛОВ ◽  
С.В. МЫШЬЯНОВ ◽  
Ю.А. КОВАЛГИН
Keyword(s):  
Russian Federation ◽  
High Power ◽  
Electromagnetic Compatibility ◽  
Field Trials ◽  
High Power Field ◽  
Transmit Power ◽  
Digital Radio ◽  
Current State ◽  
Radio Broadcasting ◽  
The World

Показано современное состояние цифрового радиовещания в России и в мире. Описаны результаты исследований, проведенных в опытной зоне аналого-цифрового DRM/ЧМ-радиовещания в полосе частот 87,5-108 МГц в Санкт-Петербурге в период с 18 июля 2019 г. по 25 декабря 2020 г. при мощностях аналоговой и цифровой частей передатчика, равных 3000 и 800 Вт соответственно. Приведены результаты оценки электромагнитной совместимости обоих форматов радиовещания. Сформулированы требования, предъявляемые отечественными радиовещателями к системе цифрового радиовещания в диапазоне 87,5-108 МГц, и показано, что аналого-цифровой формат DRM Simulcast соответствует им. The current state of digital radio broadcasting both in Russia and in the world is presented. Digiton Systems LLC carried out a high-power field trial of the DRM system in DRM Simulcast mode by order of the Russian Television and Radio Broadcasting Network (RTRN) in the FM band 87.5-108 MHz in St. Petersburg (Russian Federation) from July 2019 to December 2020. The transmitter was set to radiate at 95.9 MHz FM signal with a transmit power of 3 kW and DRM signal with a transmit power of 800 W simultaneously. The article presents the results of these studies. The results of evaluating the electromagnetic compatibility of FM and DRM broadcasting formats are also described.

scholarly journals ДІЯЛЬНІСТЬ ЦЕНТРАЛЬНИХ БАНКІВ КРАЇН ІЗ РОЗВИНЕНОЮ РИНКОВОЮ ЕКОНОМІКОЮ

2019 ◽  
pp. 361-368
Author(s):  
Viktoria Dudchenko
Keyword(s):  
Great Britain ◽  
Market Economy ◽  
Financial System ◽  
Central Banks ◽  
European Countries ◽  
Economic Factors ◽  
Modern Development ◽  
The Usa

The economic factors of modern development of the countries with developed market economy, namely Canada, the USA, Japan, Italy, Germany, Great Britain and France, were analyzed. The peculiarities of implementation of monetary policy’s measures by the central banks of the countries with developed market economy were studied and justified. The systematization of the elements of the mechanism for ensuring the financial stabilization by the central banks of the countries with developed market economy was held. The modern branches of ensuring the financial stabilization, namely the project «Greening of Canada’s Bank», were given characteristics to. The measures, used by the central banks of the European countries under investigation in order to prevent the emergence of crisis within financial system, were described

scholarly journals Ensuring cybersecurity of ACS TP energy company based on the construction of protected enclaves

2021 ◽  
Vol 46 (2) ◽  
Author(s):  
I. M. Dovgusha ◽  
◽  
I. M. Lutsenko ◽  
Ya. A. Derkachenko
Keyword(s):  
Process Control ◽  
Control Systems ◽  
Basic Information ◽  
Energy Company ◽  
Technical Requirements ◽  
Process Control Systems ◽  
Modern Development ◽  
Different Types ◽  
Automated Process

The paper presents basic information about systems and networks of automated process control systems and identifies trends in their modern development. New tasks of increase of their safety are formulated, both at the stage of the analysis of separate functional knots, and creation of system and a network as a whole according to technical requirements. Different types of constructions of protected enclaves are investigated and recommendations on their choice depending on the set technical requirements to the system and taking into account the criticality of the systems are made. The technology of enclave protection is studied taking into account the criticality of assets.

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