The Experts below are selected from a list of 9507 Experts worldwide ranked by ideXlab platform

M.c. Stefanovic - One of the best experts on this subject based on the ideXlab platform.

  • Rayleigh fading and pulse interference influence on the QPSK system performance
    6th International Conference on Telecommunications in Modern Satellite Cable and Broadcasting Service 2003. TELSIKS 2003., 2003
    Co-Authors: M.c. Stefanovic
    Abstract:

    The purpose of this paper is to provide the theoretical approach for determining the bit error probability in detecting a coherent quaternary phase shift keyed signal in the presence of the Rayleigh fading, Gaussian noise and pulse interference, as well as the noisy carrier reference signal. Phase locked loop, as the Constituent Part of the receiver, is used in providing the synchronization reference signal extraction, which is assumed to be imperfect in this paper. The determined results are based on the nonlinear phase locked loop model with primary emphasis on the degradations in the system performance produced by the imperfect carrier signal extraction.

  • Error probability of satellite communication system in the presence of transmitting ground station HPA nonlinearity
    5th International Conference on Telecommunications in Modern Satellite Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01, 2001
    Co-Authors: M.c. Stefanovic, G.t. Djordjevic, S.d. Ristic
    Abstract:

    Taking the uplink and downlink cochannel interference and noise into account, we determine the error probability in detecting a binary phase-shift keying (BPSK) signal transmitted over a satellite system containing two high power amplifiers (HPA). The first one is the Constituent Part of the transmitting ground station and the second one is the Constituent Part of the satellite station. The emphasis is placed on determining the system performance degradation imposed by the influence of the nonlinear characteristic of the HPA in the transmitting ground station in combination with the negative influences of the uplink and downlink cochannel interference, as well as the nonlinear characteristic of HPA in the satellite station.

  • An example of a hybrid system: coherent optical system with Costas loop in receiver-system for transmission in baseband
    Journal of Lightwave Technology, 1998
    Co-Authors: I.b. Djordjevic, M.c. Stefanovic, S.s. Ilic, G.t. Djordjevic
    Abstract:

    The possibility of hybrid system construction is considered in this paper. The coherent optical system is the Constituent Part of this system. The first Part of the system is constructed in passband (optical cable is transmission medium), and the second Part of the system is constructed in baseband. The heterodyne optical receiver is used as optical receiver. Estimation is not done just after demodulation, but it is done at the end of the section in baseband. Taking into account shot noise of photodetectors, laser phase noise (transmitter laser and local laser) and noise which is generated during transmission by means of the section in baseband, we determine the performances of the proposed system.

G.t. Djordjevic - One of the best experts on this subject based on the ideXlab platform.

  • Influence of Transmitting Ground and Satellite Station HPA Nonlinearities on Satellite Communication System Performance in the Presence of Cochannel Interference
    IEICE Transactions on Communications, 2005
    Co-Authors: Mihajlo Stefanovic, G.t. Djordjevic
    Abstract:

    Taking the uplink and downlink cochannel interference and noise into account, we determine the error probability in detecting a binary phase-shift keying (BPSK) signal transmitted over a satellite system containing two high power amplifiers (HPA). The first one is the Constituent Part of the transmitting ground station and the second one is the Constituent Part of the satellite station. The emphasis is placed on determining the system performance degradation imposed by the influence of the nonlinear characteristic of the HPA at the transmitting ground station in combination with the negative influences of the uplink and downlink cochannel interference, as well as the nonlinear characteristic of HPA at the satellite station.

  • Error probability of satellite communication system in the presence of transmitting ground station HPA nonlinearity
    5th International Conference on Telecommunications in Modern Satellite Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01, 2001
    Co-Authors: M.c. Stefanovic, G.t. Djordjevic, S.d. Ristic
    Abstract:

    Taking the uplink and downlink cochannel interference and noise into account, we determine the error probability in detecting a binary phase-shift keying (BPSK) signal transmitted over a satellite system containing two high power amplifiers (HPA). The first one is the Constituent Part of the transmitting ground station and the second one is the Constituent Part of the satellite station. The emphasis is placed on determining the system performance degradation imposed by the influence of the nonlinear characteristic of the HPA in the transmitting ground station in combination with the negative influences of the uplink and downlink cochannel interference, as well as the nonlinear characteristic of HPA in the satellite station.

Elenacristina Mahika - One of the best experts on this subject based on the ideXlab platform.

  • Promoting Dobrogea region as a Constituent Part of the 'Silk Road' – an engine for socio–economic and cultural cooperation in the globalization context
    Review of applied socio-economic research, 2020
    Co-Authors: Camelia Ditu Furtuna, Elenacristina Mahika
    Abstract:

    Cultural tourism has experienced a rapid growth, along with a comparable diversification of cultural patterns. The potential of development for this economy sector can be huge. There are specific patterns for every culture and that is why cultural tourism is an inexhaustible source of tourism resources. Cultural tourism represents, along with trade, a vector of knowledge, exchange and tempering for the relations between nations. In this sense the 'Silk Road' program promoted by UNESCO represents an example of cooperation and intercultural exchange, being also an engine of growth for the regions included in the program. Dobrogea, as a land situated at the junction of great empires, subject to social, economic, political and even geological changes can offer us, at the beginning of the third millennium, important disclosures for the world history. The purpose of this paper is to militate for including Dobrogea in the UNESCO program of preserving and promoting the “Silk Road” tourism product. Even if now Dobrogea is not Part of the 'Silk Road' destinations, available evidence support our proposition on the necessity of a more thorough research in order to find new information to support this theory. Our research examines the manner in which promoting Dobrogea as Part of the “Silk Road” destination can be a value for the UNESCO program and also for the local economy. This can represent a resource worth developing through a public - private Partnership between the tourism industry, largely privatized and the Ministry of Culture. Through a medium and long term strategy, a sustained promotional campaign, this hypothesis could be proven if a Part of the revenue generated from tourism would be invested in culture. This paper is an exploratory research, based on data and studies on the importance of promoting Dobrogea region as Part of UNESCO 'Silk Road' program.

  • promoting dobrogea region as a Constituent Part of the silk road an engine for socio economic and cultural cooperation in the globalization context
    Review of applied socio-economic research, 2012
    Co-Authors: Camelia Ditu Furtuna, Elenacristina Mahika
    Abstract:

    Cultural tourism has experienced a rapid growth, along with a comparable diversification of cultural patterns. The potential of development for this economy sector can be huge. There are specific patterns for every culture and that is why cultural tourism is an inexhaustible source of tourism resources. Cultural tourism represents, along with trade, a vector of knowledge, exchange and tempering for the relations between nations. In this sense the 'Silk Road' program promoted by UNESCO represents an example of cooperation and intercultural exchange, being also an engine of growth for the regions included in the program. Dobrogea, as a land situated at the junction of great empires, subject to social, economic, political and even geological changes can offer us, at the beginning of the third millennium, important disclosures for the world history. The purpose of this paper is to militate for including Dobrogea in the UNESCO program of preserving and promoting the “Silk Road” tourism product. Even if now Dobrogea is not Part of the 'Silk Road' destinations, available evidence support our proposition on the necessity of a more thorough research in order to find new information to support this theory. Our research examines the manner in which promoting Dobrogea as Part of the “Silk Road” destination can be a value for the UNESCO program and also for the local economy. This can represent a resource worth developing through a public - private Partnership between the tourism industry, largely privatized and the Ministry of Culture. Through a medium and long term strategy, a sustained promotional campaign, this hypothesis could be proven if a Part of the revenue generated from tourism would be invested in culture. This paper is an exploratory research, based on data and studies on the importance of promoting Dobrogea region as Part of UNESCO 'Silk Road' program.

S.d. Ristic - One of the best experts on this subject based on the ideXlab platform.

  • Error probability of satellite communication system in the presence of transmitting ground station HPA nonlinearity
    5th International Conference on Telecommunications in Modern Satellite Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01, 2001
    Co-Authors: M.c. Stefanovic, G.t. Djordjevic, S.d. Ristic
    Abstract:

    Taking the uplink and downlink cochannel interference and noise into account, we determine the error probability in detecting a binary phase-shift keying (BPSK) signal transmitted over a satellite system containing two high power amplifiers (HPA). The first one is the Constituent Part of the transmitting ground station and the second one is the Constituent Part of the satellite station. The emphasis is placed on determining the system performance degradation imposed by the influence of the nonlinear characteristic of the HPA in the transmitting ground station in combination with the negative influences of the uplink and downlink cochannel interference, as well as the nonlinear characteristic of HPA in the satellite station.

Anatoliy Makarskiy - One of the best experts on this subject based on the ideXlab platform.

  • Geotouristics as a Constituent Part of Tourism as a Science
    Servis Plus, 2014
    Co-Authors: Татьяна Комиссарова, Tatyana Komissarova, Анатолий Макарский, Anatoliy Makarskiy
    Abstract:

    The article is devoted to the theoretical issues of tourism as a science and considers the genesis and evolution of the scientific paradigm oftouristics, the establishment of scientific terminology (touristics, tourismology, tourism studies). The authors employ the term ´touristics´ and claim that touristics is a complex scientific field and an interdisciplinary research area. Glossaries define touristics as comprising an entire system of tourism sciences, tourist activities, tourist economy, tourist management and tourist legislation. The article states that the theory of tourism originated from economic sciences, which ensures a high level of development that tourist economy, management, marketing, advertising and holiday industry demonstrate today, each contributing to the core oftouristics. However, it would be shortsighted to underestimate the value of geographical and geospatial scientific knowledge for the development oftouristics, which covers geographical space as well as economy. The article views geotouristics as a distinct scientific field studying as its object the continual and discrete (discontinuous) tourism and recreation environment as existing within geographical space. The subject of touristic scientific research encompasses objects of tourist interest, Constituents of tourist infrastructure, their nature-oriented and geo-ecological aspect, social and demographic features of the indigenous population and the changes they undergo in the course of tourist and recreational territory development. Finally, the article evaluates the methods and prospects oftouristics.