Global Mobile Satellite Communications Applications

Ilčev, Stojče Dimov

doi:10.1007/978-3-319-71858-3

Cited by 13 publications

(35 citation statements)

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“…where the (f τ , f η − f dc ) and the (f τ , f η − f dc ) coordinates are related by the same rotation angle θ r as Table 1 lists the parameters of a Tundra orbit [12]. A constellation of two satellites are deployed to detect a point target specified in the Earth-centered Earth-fixed (ECEF) coordinate system.…”

Section: Modified Rfm Filtermentioning

confidence: 99%

“…Typically, a number of satellites are deployed on complementary orbits to provide complete coverage over a specific area [11]. Satellites were employed on the Molniya and the Tundra orbits [12][13][14][15][16] by the former Soviet Union, for TV broadcast to high-latitude cities. A constellation of three satellites can be deployed in a Molniya orbit to provide continuous coverage at a specific longitude.…”

Section: Introductionmentioning

confidence: 99%

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Sar Imaging on Heo Satellites With an Improved Frequency-Domain Algorithm

Chen¹,

Kiang²

2017

PIER M

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Abstract-The possibility of employing highly-elliptical-orbit (HEO) satellites for SAR imaging is investigated. A constellation of two satellites in the Tundra orbits, which are capable of covering all the high-latitude areas, are chosen as the platforms for SAR imaging. The received signal is processed with an improved frequency-domain algorithm (FDA) to reconstruct the image. Simulation results verify that the proposed method can produce better SAR images with less computational load and memory than the conventional FDA.

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Section: Modified Rfm Filtermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sar Imaging on Heo Satellites With an Improved Frequency-Domain Algorithm

Chen¹,

Kiang²

2017

PIER M

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“…It quickly took the center stage and became solutions to all satellite projects for broadcast, broadband and multimedia interactive application for high speed internet and IPTV soon after it was introduced in 1993 [9]. This breakthrough quickly evolved and lead to the second generation of DVB standard as a new and cost effective, efficient, reliable, secure and functional solution.…”

Section: Evolution Of Dvb-rcs Standardsmentioning

confidence: 99%

“…Majority of the world's population live in suburban, rural and remote locations with little or no accesses to internet or communication and academic facilities [9].This is the case for developing countries like Ghana majority of the population in the country has no accesses to communication facilities, distancing them from quality education, social and health care facilities. Therefore, satellite network technologies with multimedia and internet capable is the best suitor for provision for e-learning [3].…”

Section: Introductionmentioning

confidence: 99%

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Implementation of E- Learning Using Digital Video Broadcasting-Return Channel Via Satellite (DVB-RCS) in Ghana

2016

IJSR

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This paper presents solution to satellite communication technologies to improve quality of education and the benefit of digital technology to where previously Information and communication Technology (ICT) infustructure could not reach in Ghana. The target is to establish the best connectivity, infrastructure and services for E-learning and cooperate organizations in urban educational institutions and large rural and remote locations that lack infrastructure. The huge cost for wideband and significant broadband connectivity requirements, quality delivery of content, applications interactivity is the bases for exploiting DVB-RCS technology. The Architecture of DVB-RCS based satellite network supports interactive and multimedia applications. This network will deliver live streaming contents to numerous users simultaneously at any time anywhere. The aim is an implementation of high bandwidth multicast satellite technologies for education. The technology address live streaming of voice, data and video over IP contents simultaneously to numerous users in any location. This initiative is part of development of a two way satellite network, to support E-learning environments with emphasis with situations in Ghana, with solutions based on Digital Video Broadcasting-Return Channel via Satellite.

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Tri‐orthogonal polarization diversity reception for non‐geosynchronous satellite orbit ionospheric channels

Lawrence

Hansen

Abbott

2016

Satell Commun Network

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Summary Electromagnetic signals propagating through the ionosphere are subject to path delay and the depolarizing effect of Faraday rotation. These are both dependent on global position and link geometry, which constantly vary for satellites in non‐geosynchronous orbits. These effects introduce performance error and reduce range resolution of remote sensing polarimetric measurements. Communication with ground receivers may be severely degraded by these effects. In this paper, a tri‐orthogonal approach at the receiver is introduced to enhance performance of conventional polarization diverse receive schemes. Performance is measured through a capacity metric. The work presented forms part of a large‐field‐of‐view, non‐geosynchronous satellite model exploiting tri‐orthogonal receive polarimetry as a means to enhancing link performance in a field‐of‐view. Copyright © 2016 John Wiley & Sons, Ltd.

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Global Mobile Satellite Communications Applications

Cited by 13 publications

References 0 publications

Sar Imaging on Heo Satellites With an Improved Frequency-Domain Algorithm

Sar Imaging on Heo Satellites With an Improved Frequency-Domain Algorithm

Implementation of E- Learning Using Digital Video Broadcasting-Return Channel Via Satellite (DVB-RCS) in Ghana

Tri‐orthogonal polarization diversity reception for non‐geosynchronous satellite orbit ionospheric channels

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