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| 11. |
Inmarsat's second-generation satellites |
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IEE Proceedings F (Communications, Radar and Signal Processing),
Volume 133,
Issue 4,
1986,
Page 406-410
P.Berlin,
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PDF (727KB)
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摘要:
Inmarsat is procuring a new generation of maritime communications satellites to replace its present space segment from 1988 onwards. The new satellites are characterised by prudent use of new technology to achieve increased communications capacity and performance. Ambitious yet realistic business planning forms the basis for what has become one of the world's largest spacecraft procurements.
DOI:10.1049/ip-f-1.1986.0065
出版商:IEE
年代:1986
数据来源: IET
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| 12. |
Military aeronautical satellite communications |
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IEE Proceedings F (Communications, Radar and Signal Processing),
Volume 133,
Issue 4,
1986,
Page 411-419
D.Cummings,
C.G.Wildey,
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PDF (1420KB)
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摘要:
The paper describes the development of Europe's first super high frequency (SHF) military aircraft satellite communications (‘aerosatcoms’) terminal. This development marks the accelerating international interest in both civil and military aerosatcoms which has been spurred by recent advances in space, microwave, modulation and antenna technologies. The paper examines the impact of these advances on the military aircraft project and discusses key design parameters, features and constraints.
DOI:10.1049/ip-f-1.1986.0066
出版商:IEE
年代:1986
数据来源: IET
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| 13. |
Review of propagation characteristics and prediction for satellite links at frequencies of 10–40 GHz |
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IEE Proceedings F (Communications, Radar and Signal Processing),
Volume 133,
Issue 4,
1986,
Page 420-428
P.G.Davies,
J.A.Lane,
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PDF (1355KB)
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摘要:
The paper is intended to provide a short review on earth-space propagation, concentrating on developments dating primarily from about 1982. The review is orientated towards the needs of radio services, specifically the fixed satellite, broadcasting satellite and mobile satellite services, and draws substantially on the work of the International Radio Consultative Committee (CCIR). The prediction methods on slant path attenuation and interference, including ducting, tropospheric scatter and unwanted crosspolar coupling, are treated in a general way. However, particular emphasis is placed on application to systems within Europe.
DOI:10.1049/ip-f-1.1986.0067
出版商:IEE
年代:1986
数据来源: IET
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| 14. |
Method for prediction of attenuation on earth-space links based on radar measurements of the physical structure of rainfall |
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IEE Proceedings F (Communications, Radar and Signal Processing),
Volume 133,
Issue 4,
1986,
Page 429-440
M.J.Leitao,
P.A.Watson,
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PDF (1579KB)
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摘要:
A new method for prediction of attenuation on earth-space links is presented, which is more rigorous in relation to modelling the physical characteristics of rainstorms than previously published techniques. It is also more accurate in providing attenuation predictions for the European region than all other published methods. The method has been derived nonempirically, based entirely on the structure of storms as observed on a dual-polarisation radar and interpreted using scattering theory.
DOI:10.1049/ip-f-1.1986.0068
出版商:IEE
年代:1986
数据来源: IET
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