Developing technologies for personal communication networks

Gaskell, P. S.

doi:10.1049/ecej:19920013

Cited by 6 publications

(1 citation statement)

References 3 publications

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“…Recent estimates of the albedo variations by several scientists (Goguen 1994;Mallama 1993;Riedel 1994;Gaskell 1995) are not entirely consistent and for the Galileo-mission ephemerides it was decided to limit the processing to computation of the difference between center of light and center of figure due to Lambert scattering only, since it represents a reasonable first approximation to the scattering properties of the satellites if one excludes albedo variations (viz., effects which depend upon features on the satellites and which vary with planetocentric longitude of the central disc). The extrapolation of Voyager-derived scattering properties (which occurred at high phase angle) to the scattering properties of the satellites at low phase angle as observed from the Earth is not entirely satisfactory and the several efforts done to date are not entirely consistent with one another.…”

Section: Ccd Observationsmentioning

confidence: 99%

Galilean satellite ephemerides E5

Lieske

1998

Astron. Astrophys. Suppl. Ser.

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Abstract. New ephemerides of Jupiter's Galilean satellites are produced from an analysis of CCD astrometric data, Voyager-mission optical navigation images, mutual event observations, photographic plates, and eclipse timing observations. The resulting parameters, for use in the galsat computer software, are in the B1950 frame for use by the Galileo space mission. Results in the J2000 system are also available.

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Section: Ccd Observationsmentioning

confidence: 99%

Galilean satellite ephemerides E5

Lieske

1998

Astron. Astrophys. Suppl. Ser.

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Adaptive selection diversity and decision feedbackevaluationfor mobile radio systems with cochannel interference

1994

Electron. Lett.

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Requirements for personal mobility in FPLMTS/UMTS: a view point from the user's expectations

Nevoux¹,

Benard-Dende²

Proceedings of Networks for Personal Communications - NPC'94

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n e goal of this paper is to discuss which mobility services need to be offered to FPLMTS/UMTS users. In facr, personal mobility ne& depend on user types and mobility patterns. To define mobility services for FPLMTS/UMTS users, two approaches are possible: the first one is the personal communicator, a small terminal combining n multitude of applications and services that allows you to make and receive calls everywhere; the second one concerns the Universal Personal Telecommunication service which enables urers , to access telecommunication services on the bmis of a unique personal network tramparent UPT number accross multiple networks at any terminal. 7hese two approaches are discussed here from the user point of view.

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Developing technologies for personal communication networks

Cited by 6 publications

References 3 publications

Galilean satellite ephemerides E5

Galilean satellite ephemerides E5

Adaptive selection diversity and decision feedbackevaluationfor mobile radio systems with cochannel interference

Requirements for personal mobility in FPLMTS/UMTS: a view point from the user's expectations

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