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Simulation and Modelling of Satellite Systems, 2002. IEE Seminar and Exhibition (Ref. No. 2002/074)

Date 23 April 2002

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Displaying Results 1 - 12 of 12
  • Requirements-driven satellite system design

    Publication Year: 2002 , Page(s): 1/1 - 1/4
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (319 KB)  

    The Skynet 5 system will provide military satellite communications to all three UK armed services, and is to be procured as a 'private finance initiative' (PFI). Though there are many PFI projects, this is the first time that such an approach has been taken for providing military satellite communications. The Defence Evaluation and Research Agency, Space Dept (now QinetiQ) has developed a simulati... View full abstract»

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  • Simulation in spectrum sharing

    Publication Year: 2002 , Page(s): 12/1 - 12/5
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (352 KB)  

    The radio spectrum is a limited resource. Its regulation and management have become increasingly important as a result of an ever-growing demand for wireless communication applications. Access to the radio spectrum is based on the Table of Frequency Allocations of the International Telecommunications Union (ITU) Radio Regulations. Due to scarcity of the frequency spectrum, many bands are allocated... View full abstract»

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  • Simulation of satellite systems operating at Ka-band and above using experimental time series of tropospheric attenuation

    Publication Year: 2002 , Page(s): 11/1 - 11/5
    Cited by:  Papers (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (330 KB)  

    Rain causes the most significant propagation loss to satellite communication systems operating above 10 GHz. However, at the higher frequencies, heavy rain is not the only propagation factor likely to degrade system performance. Gases, cloud and light rain, factors that are normally neglected in the lower frequency bands, can significantly limit the performance of an Earth-space system operating a... View full abstract»

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  • Computer modelling of the radiation performance of an Earth station antenna in the presence of clutter as a planning and site shielding design tool for urban teleport sites

    Publication Year: 2002 , Page(s): 8/1 - 8/4
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (409 KB)  

    The increasing number of satellite communication services has resulted in a need for more satellite ground stations. While in the past Earth stations were located in remote areas, nowadays there is economic and planning pressure to place as many Earth stations as possible on a chosen site, preferably closer to the major network nodes. This has led to an unavoidable increase in the risk of interfer... View full abstract»

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  • Operational spacecraft simulations: present and future

    Publication Year: 2002 , Page(s): 9/1 - 9/4
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (369 KB)  

    Operational spacecraft simulators exist to: train operators; validate operational procedures (including innovative procedures that may be needed for disaster recovery or to compensate for failing onboard instruments); validate onboard software patches and investigate anomalous behaviour. The prime benefits of such a simulator are in keeping the spacecraft operating by preventing costly mistakes. G... View full abstract»

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  • Simulation of airborne satellite communications using a platform motion emulator

    Publication Year: 2002 , Page(s): 7/1 - 7/4
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (448 KB)  

    Demand for all types of satellite communications (SATCOM) for airborne users, both military and civil, has risen rapidly in the last decade. However, SATCOM installation costs are significant and live trials involving real aircraft can be extremely costly. Furthermore, they can be of limited technical value if ground truth is unavailable or measurement conditions are unreproducible. This paper des... View full abstract»

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  • Simulation of multiple carriers through non-linear satellite links

    Publication Year: 2002 , Page(s): 10/1 - 10/7
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (417 KB)  

    It is important to plan a satellite link before selling it. Simulation can be used as an aid to planning in order to: (1) make most use of the satellite transponder, since it is the most expensive part of the link; (2) decide the optimum size for Earth station high power amplifiers (HPAs); (3) increase the accuracy of the link budget. If the amplifiers are operated in a non-linear region, such as ... View full abstract»

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  • Availability modelling tools applicable to satellite systems

    Publication Year: 2002 , Page(s): 2/1 - 2/4
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (342 KB)  

    QinetiQ (pronounced "kinetic") is a limited company wholly owned by the UK Government. It incorporates most of the former research, technology and evaluation establishments of the Ministry of Defence. QinetiQ and its predecessor organisations have played a central role in the development and leadership of the UK space programme for more than 40 years. Space activities in which the organisation is ... View full abstract»

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  • An ns-derived GEO satellite network simulator: features, capabilities, results

    Publication Year: 2002 , Page(s): 6/1 - 6/6
    Cited by:  Papers (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (450 KB)  

    The paper presents a GEO satellite network simulator developed upon the 'network simulator' (ns) platform. Initially, its objective was the investigation of the interaction of the transmission control protocol (TCP) with the data link layer in satellite networks. However, it has evolved to a simulator capable of addressing a wide range of issues that arise in current and future satellite networks.... View full abstract»

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  • The suitability of satellite broadband to meet distributed applications performance requirements

    Publication Year: 2002 , Page(s): 5/1 - 5/4
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (288 KB)  

    One of the largest issues facing the take-up of satellite broadband communication is its ability to meet the communications performance requirements for distributed applications, in terms of both latency and bandwidth. Distributed applications can be classified according to those data requirements into three elemental classes: "batch" applications, which require the transmission of large quantitie... View full abstract»

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  • Simulation of S-UMTS system

    Publication Year: 2002 , Page(s): 4/1 - 4/5
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (442 KB)  

    This paper presents simulation aspects of the standard satellite universal mobile telecommunication system (S-UMTS) air interface and the generic models used for the simulation of the physical layer. It is very important to validate the accuracy of the individual models before combining them. Therefore, a full description of the important models for parameters such as modulation, encoding, interle... View full abstract»

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  • Simulation and Modelling of Satellite Systems 2002

    Publication Year: 2002 , Page(s): 0_1 - 0_4
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (189 KB)  

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