SVIBOR - Project code: 2-07-277

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Project code: 2-07-277


RESEARCH OF ADVANCED TECHNOLOGIES FOR CROATIAN BROADCASTING SYSTEMS


Main researcher: ZOVKO-CIHLAR, BRANKA (55163)



Assistants
Type of research: applied
Duration from: 03/01/91. to 03/01/96.

Papers on project (total): 172
Papers on project quoted in Current Contents: 2
Institution name: Fakultet elektrotehnike i računarstva, Zagreb (36)
Department/Institute: Department of radiocommunication and microwave engineering
Address: Unska 3
City: 10000 - Zagreb, Croatia
Communication
Phone: 385 (0)1 6129-39
Fax: 385 (0)1 6111-396
E-mail: branka.zovko@fer.hr

Summary: The main purpose of the project is to define present situation of Croatian broadcasting systems and to research advanced technology in production, transmission, distribution and reception of video, audio and data signals. Digital video signal processing and image quality parameters were analyzed. Methods of matching networks design in RF amplifiers have been analyzed. Introduction of optical fibre distribution networks has been investigated, especially optical fibre characteristics such as losses, bandwidth and maintenance. Satellite MAC and MUSE systems for HDTV distribution were investigated. The methods of objective evaluation of HDTV picture qulaity and their introduction in Croatian television were researched. Techniques for digitalizaton, coding and decoding of various types of video sources and their tranmission over broadband integrated services digital networks based on ATM were analyzed. Based on standard procedure, test and measurement of image quality parameters in multimedia communication have been done.

Keywords: radiocommunications, optical communications, broadband integrated services digital network (B-ISDN), Asynchronous Transfer Mode (ATM) networks, bit rate, signal bandwidth, image quality, High Definition Television (HDTV), digital transmission, satellite broadcasting, Cable Television (CATV), video signal coding/decoding, video signal compression, multimedia communication.

Research goals: The main goal of the project is definition and development of scientific research in technology of measurement methods for radiocommunication systems optimal realisation together with advanced technology in Croatian television. The possibilities of video, audio and data transmission via satellite and terrestrial networks will be esablished. The various methods of digital modulations for digital video signal are analyzed. The optical fibre parameters such as losses, frequency bandwidth and attenuation will be defined. Broadband cable networks for video signal distribution will be analyzed. The influence of bit rate reduction on picture quality in ATM network will be investigated. Final goal is introduction of advanced technology for broadcast quality in television production, transmission and reception.


COOPERATION - PROJECTS


  1. Name of project: COST 242 Methods for the Performance Evaluation and Design of Broadband Multisevice Netowrks
    Name of institution: Commission of the European Communities
    City: Brussels, Belgium


COOPERATION - INSTITUTIONS


  1. Name of institution: Hrvatska radio televizija
    Type of institution: Economical/Production
    Type of cooperation: Joint publishing of scientific papers
    City: 10000 - Zagreb, Croatia

  2. Name of institution: Hrvatska pošta i telekomunikacije
    Type of institution: Institution whose primary activities ar
    Type of cooperation: Systematic exchange of information
    City: 10000 - Zagreb, Croatia

  3. Name of institution: University of Mining and Metallurgy, Telecommunications Department
    Type of institution: University/Faculty
    Type of cooperation: Systematic exchange of experts
    City: 30-059 - Krakow, Poland

  4. Name of institution: Technical University of Budapest, Department of Microwave Telecommunications
    Type of institution: University/Faculty
    Type of cooperation: Occasional exchange of experts
    City: H-1111 - Budapest, Hungary


OTHER ACHIEVEMENTS


  1. Name: Konstrukcija sučelja za ispitivanje digitalnih sklopova
    Type of achievement: Prototypes
    Authors: Gordana Špoljar, Branka Zovko-Cihlar

  2. Name: Postupak za eliminiranje smetnji izazvanih strujnim i naponskim udarima
    Type of achievement: Studies of conduct
    Authors: Josip Godič, Branka Zovko-Cihlar

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Last update: 10/09/95
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