Showing 141 - 160 results of 238 for search '"communications satellite"', query time: 0.42s Refine Results
  1. 141

    Research on Spacecraft Integrated Electronic System Architecture Based on Information Fusion by Ji Qiang, Zhang Shifeng, Zhao Haoguang

    Published 2018-01-01
    “…This paper has designed the integrated electronic system and protocol architecture based on the standard of Consultative Committee for Space Data Systems (CCSDS) and European Communication Satellite System (ECSS). The application layer, application support layer, transport layer and sub network layer in the architecture can be described in detail, and the functions can be realized through the combination of various business and protocols. …”
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    Article
  2. 142

    Allocating Power and Bandwidth in Multibeam Satellite Systems using Particle Swarm Optimization by Pachler, Nils, Luis, Juan Jose Garau, Guerster, Markus, Crawley, Edward, Cameron, Bruce

    Published 2021
    “…In recent years, communications satellites' payloads have been evolving from static to highly flexible components. …”
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    Article
  3. 143

    Target Localization by Resolving the Time Synchronization Problem in Bistatic Radar Systems Using Space Fast-Time Adaptive Processor by D. Madurasinghe, A. P. Shaw

    Published 2009-01-01
    “…The technique does not depend on the use of communication satellites or GPS systems, instead it relies on the availability of the direct transmit copy of the signal from the transmitter and the reflected paths off the various targets. …”
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    Article
  4. 144
  5. 145

    A Fine-Tuned Positioning Algorithm for Space-Borne GNSS Timing Receivers by Xi Chen, QiHui Wei, YaFeng Zhan, TianYi Ma

    Published 2020-04-01
    “…To maximize the usage of limited transmission power and wireless spectrum, more communication satellites are adopting precise space–ground beam-forming, which poses a rigorous positioning and timing requirement of the satellite. …”
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    Article
  6. 146

    Prediction of Communication Outage Period between Satellite and Earth station Due to Sun Interference by Yongjun Song, Kap-Sung Kim, Ho Jin, Byoung-Sun Lee

    Published 2010-03-01
    “…For the verification of the calculation, we used TU media ground station on Seongsu-dong, and MBSAT geostationary communication satellite. We analysis errors, due to satellite perturbation and antenna align. …”
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    Article
  7. 147

    An efficient multirate FDM demultiplexer by Xiang, Weiguan

    Published 2009
    “…New types of communication satellites will be demanded by future traffic requirements in mobile and small fixed-station business systems which are characterised by a large number of small capacity, multi-service users and small earth stations. …”
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    Thesis
  8. 148

    Communication Engineering Principles / by Otung, Ifiok, author 556851

    Published 2021
    “…Primarily intended for a first undergraduate degree course in Communication Engineering, CEP also proved to be an excellent background reading material on a range of MSc courses related to Telecommunication Engineering (e.g., Mobile Communication, Satellite Communication, Optical Communication, Electronics, Computer Systems, etc.) and to be suitable for practicing engineers, media technology professionals and technical managers wishing to update their knowledge of the subject. …”
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  9. 149

    Orbit Geostasioner (GSO) dalam Hukum Internasional dan Kepentingan Nasional Indonesia by Agus Pramono

    Published 2013-04-01
    “…Geostasioner is one of the limited natural resources as a strategic place for communication satellite orbite. The communication satellite is the major vehicle to endorse many kind of the world people activities, and especially for the national interest such as economics, politics, social and culture, and also defence. …”
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    Article
  10. 150

    Predicting atmospheric humidity and temperature based on satellite signal field strength measurements by Sairi, Mohd Izza

    Published 2015
    “…Therefore, this work investigates the application of a communication satellite as a new method for predicting the atmospheric temperature and humidity. …”
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    Thesis
  11. 151

    An Artificial Celestial Observation Navigation System Using Star Sensor by Gao Yimeng, Min Changwan, Yang Rui

    Published 2023-06-01
    “…To solve the guidance error caused by inaccurately initial position of rapid launch in inertial navigation, a navigation method using a single satellite sensor to observe the near Earth communication satellite is proposed, which can correct the position of the aircraft through observing the position of satellite in inertial space and comparing with the computer simulation results. …”
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    Article
  12. 152

    A solar cycle of spacecraft anomalies due to internal charging by G. L. Wrenn, G. L. Wrenn, G. L. Wrenn, D. J. Rodgers, K. A. Ryden

    Published 2002-07-01
    “…A specific and recurrent anomaly on a geostationary communication satellite has been tracked for ten years so that solar cycle and seasonal dependencies can be clearly established. …”
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    Article
  13. 153

    Study of different performance measures and their relations in satellite‐based and terrestrial quantum communication by Avik Mukhopadhyay, Shantom Kumar Borah, Yashkalp Sharma, Sainath Bitragunta, Vinay Chamola

    Published 2021-12-01
    “…However, they suffer largely from exponential transmissivity decays and are not suitable for very long‐distance communication. Satellite links along with quantum cryptography can be the foundation of modern quantum communication systems. …”
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    Article
  14. 154

    The state of telepathology in Japan by Takashi Sawai, Miwa Uzuki, Akihisa Kamataki, Ikuo Tofukuji

    Published 2010-01-01
    “…Infrastructure and equipment has evolved from analog lines to digital lines like integrated services digital network (ISDN) and asymmetric digital subscriber line (ADSL), and recently to fiber optics. The use of communications satellites is also being considered. Image quality is being improved to Hi-Vision (HDTV), and from still images to real-time video. …”
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    Article
  15. 155

    Review of Ka-Band Power Amplifier by Zhong Wang, Shanwen Hu, Ling Gu, Lujun Lin

    Published 2022-03-01
    “…With the increase in the demand for high-speed transmission communication, satellite communication is developing rapidly. …”
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    Article
  16. 156

    Receiver architectures for positioning with low earth orbit satellite signals: a survey by Christina Pinell, Fabricio S. Prol, M. Zahidul H. Bhuiyan, Jaan Praks

    Published 2023-06-01
    “…Therefore, even communication satellite transmissions are becoming appealing to navigation, as so-called Signals of OPportunity (SOP). …”
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    Article
  17. 157

    Implementation of adaptive coding and modulation for satellite communication links in heavy rain region: an operators perspective by Abubakar, I., Lam, H. Y., Din, J.

    Published 2016
    “…This contribution presents an implementation of adaptive modulation and coding (ACM) for the real operating satellite- based internet protocol (IP) communication system from the Nigeria communication satellite (NigComSat-1R) very small aperture terminal (VSAT) network. …”
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  18. 158

    Development of transformable reflectors of mirror space antennas by Reznik Sergey, Prosuntsov Pavel, Denisov Oleg, Denisova Liliana, Zavaryev Vladimir, Mikhailovsky Konstantin

    Published 2019-01-01
    “…Currently, the task of designing large structures of space antennas is becoming increasingly important due to active research and development in the area of creating remote sensing and communication satellites. Designing such structures is a complicated task due to geometric features, a large number of joints, compactness requirements, as well as operating conditions of the outer space. …”
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    Article
  19. 159

    The Magnetic Universe: The Illusive Traces of an Invisible Force by J. B. Zirker by Alexei Pevtsov

    Published 2016-09-01
    “…Without it, solar flares could cause havoc in electrical power grids, damage communication satellites, and threaten astronauts in orbit. …”
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    Article
  20. 160

    Micromachined tunable filters using MEMS switches and electromagnetic bandgap structures by Muhammad Faeyz Karim

    Published 2010
    “…Future handheld devices, ground comunications systems as well as communications satellites necessitate the use of highly integrated and reconfigurable RF front-ends, featuring small size, low weight, high performance and low cost. …”
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    Thesis