5,582 research outputs found
MODELING OF SATELLITE COMMUNICATION LINKS WITH ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING
No full textMODELING OF SATELLITE COMMUNICATION LINKS WITH ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING / Kharchenko V.P., Wang Bo, Grekhov A.M., Leschenko A.M. // Transport. – 2016. – V.31. – №1. – P. 22–28.Global technologies of data transmission in real time are developing constantly. Therefore modeling of messages transmission through satellite constellations is an actual problem. In this paper the original model of a communication channel "Vehicle-to-Satellite-to-Ground Station" based on principles of the IEEE 802.11a standard is designed using MATLABSіmulіnk software. The model allows simulating data transmission with data rate from 6 to 54 Mbit/s using adaptive modulation. For uplink/downlink two types of channels were analyzed - a free space path losses with phase/frequency offset and AWGN link. On the base of this model channel integrity was investigated and dependences of a signal-noiseratio (SNR) on free space path losses, antennas diameters, number of OFDM symbols and satellite transponder noise temperature were received
MODELING OF SATELLITE COMMUNICATION LINKS WITH ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING
No full textMODELING OF SATELLITE COMMUNICATION LINKS WITH ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING / Kharchenko V.P., Wang Bo, Grekhov A.M., Leschenko A.M. // Transport. – 2016. – V.31. – №1. – P. 22–28.Global technologies of data transmission in real time are developing constantly. Therefore modeling of messages transmission through satellite constellations is an actual problem. In this paper the original model of a communication channel "Vehicle-to-Satellite-to-Ground Station" based on principles of the IEEE 802.11a standard is designed using MATLABSіmulіnk software. The model allows simulating data transmission with data rate from 6 to 54 Mbit/s using adaptive modulation. For uplink/downlink two types of channels were analyzed - a free space path losses with phase/frequency offset and AWGN link. On the base of this model channel integrity was investigated and dependences of a signal-noiseratio (SNR) on free space path losses, antennas diameters, number of OFDM symbols and satellite transponder noise temperature were received
Group living homes for older people with dementia: Concept and effects
No full textEefsting, J.A. [Promotor]Pot, A.M. [Promotor]Depla, M.F.I.A. [Copromotor]Lange, J. de [Copromotor
Cementbetonnen plaatbekledingen op oevers en dijken, bundeling van artikelen uit de vakpers 1990-1991
No full textCUR; Proefproject: Open colloidaal beton a/s dijkbekleding; PT civiele techniek, april 1990. Burger, A.M., Eversdijk, P.J. en Hendriksma, A.M.; Open cementbeton toegepast a/s bekleding voor dijken; Zeewering Breskens, proefproject voor colloidaal beton; Land + Water, mei 1990. Burger, A.M., Eversdijk, P.J. en Hendriksma, A.M.; Colloidaal beton weerstaat zware storm en hoge golven; De praktijk van open cementbeton a/s Plaatbekleding; Land + Water, juni 1990. CUR; Cementbetonnen plaatbekledingen op dijken; Proefprojecten CUR; Civiele Techniek, No4, 1990. Vrieze, C.G. de; Betonnen dijken, groen a/s gras; Proeven met colloidaal beton voor begroeide rivierdijken; Land + Water No.6, juni 1991. Eversdijk, P.J. en Fase, A.G.; Breuksteen met colloidaal beton pakt rivierdijken goed in; Proefproject Opijnen in Julianakanaal; Land + Water No. 7/8, augustus 1991. Rijke, W.G. de en Burger, A.M.; Cementbetonnen plaatbekledingen op dijken en oevers; Praktische ontwerpmethode (1); Civiele Techniek, jaargang 46, No.3, 1991. Rijke, W.G. de en Burger, A.M.; Cementbetonnen plaatbekledingen op dijken en oevers theoretisch waterdicht; Praktische ontwerpmethode (2); Civiele Techniek, jaargang 46, No.4, 1991. CUR; oemonstratieproject open colloidaal beton Noordoostpolder; Civiele Techniek, No.3, 1991
IoWoman, March/April 2004, Vol.34, no.2
No full textNewsletter for the Iowa Commission on the Status of Wome
IoWoman, March/April 2004, Vol. 34, no. 2
No full textNewsletter for the Iowa Commission on the Status of Wome
Gauge Fields and Strings
No full textBased on his own work, the author synthesizes the most promising approaches and ideals in field theory today. He presents such subjects as statistical mechanics, quantum field theory and their interrelation, continuous global symmetry, non-Abelian gauge fields, instantons and the quantam theory of loops, and quantum strings and random surfaces. This book is aimed at postgraduate students studying field theory and statistical mechanics, and for research workers in continuous global theory
The Sphinx Between the First and Second Pyramids. From a Photograph Taken by the Author about 6 a.m., After Sleeping at the Foot of the Sphinx.
No full textCaption: "The Sphinx Between the First and Second Pyramids.From a photograph taken by the Author about 6 A.M., after sleeping at the foot of the Sphinx."The Great Sphinx with two pyramids behind. Black-and-white photograph
Common Book Author Visit Highlights Spring Programming
No full textCommon Book author William Kamkwamba will visit campus on April 3 at 11 a.m. in Richardson Ballroom. All events are free and have cultural event status
Author of \u27The Soloist\u27 to Speak
No full textSteve Lopez, author of The Soloist, will speak at 9:30 a.m., Thursday, November 5, in Polsky Theatre as part of the JCCC scholar in residence program
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