Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Mounir Adjrad"'
Autor:
Mounir Adjrad, Paul D. Groves
Publikováno v:
Journal of Navigation. 71:1-20
In dense urban areas, conventional Global Navigation Satellite Systems (GNSS) positioning can exhibit errors of tens of metres due to the obstruction and reflection of the signals by the surrounding buildings. By using Three-Dimensional (3D) mapping
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12652cf395a98dd792587f7a4aa26f25
https://doi.org/10.1017/s0373463317000509
https://doi.org/10.1017/s0373463317000509
Autor:
Mounir Adjrad, Paul D. Groves
Publikováno v:
GPS Solutions. 21:1805-1816
The accuracy of conventional global navigation satellite systems (GNSS) positioning in dense urban areas is severely degraded due to blockage and reflection of the signals by the surrounding buildings. By using 3D mapping of the buildings to aid GNSS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6e46ea5e36d7a50463c652feaa2a79b
https://doi.org/10.1007/s10291-017-0654-1
https://doi.org/10.1007/s10291-017-0654-1
Autor:
Robert Brown, Hafeez-Ur-Rehman Siddiqui, Navid Ghavami, Mohammad Ghavami, Mounir Adjrad, Sandra Dudley
Publikováno v:
Energy and Buildings. 141:134-141
Human behaviour and occupancy accounts for a substantial proportion of variation in the energy efficiency pro le of domestic buildings. Yet while people often claim that they would like to reduce their energy bills, rhetoric frequently fails to match
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79476c029fe67bbbc5404a9189e3507f
https://doi.org/10.1016/j.enbuild.2017.02.004
https://doi.org/10.1016/j.enbuild.2017.02.004
Autor:
Paul D. Groves, Mounir Adjrad
Publikováno v:
Navigation. 64:75-91
GNSS positioning performance in dense urban areas is severely degraded due to the obstruction and reflection of the signals by the surrounding buildings. A basic GNSS position solution can exhibit errors of tens of meters, sometimes more. Here, 3D ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0988fe226ede6f9444b9dacc81d90228
https://doi.org/10.1002/navi.178
https://doi.org/10.1002/navi.178
Publikováno v:
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol IV-2/W1, Pp 171-178 (2016)
There is an increasing demand for highly accurate positioning information in urban areas, to support applications such as people and vehicle tracking, real-time air quality detection and navigation. However systems such as GPS typically perform poorl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02090cdefcc6776f69de08a361368a5f
https://doi.org/10.5194/isprs-annals-iv-2-w1-171-2016
https://doi.org/10.5194/isprs-annals-iv-2-w1-171-2016
Autor:
Paul D. Groves, Mounir Adjrad
Publikováno v:
Proceedings of the 31st International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2018).
In dense urban areas, GNSS signals are blocked and reflected by the buildings, severely degrading the positioning accuracy. By using 3D mapping of the buildings to predict which signals are visible and which are blocked, the accuracy can be substanti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8b4e2608dac97912aefd136d71db43c
https://doi.org/10.33012/2018.15884
https://doi.org/10.33012/2018.15884
Autor:
Mounir Adjrad, Paul D. Groves
Publikováno v:
Proceedings of the 31st International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2018).
3D mapping can significantly improve GNSS positioning accuracy in dense urban areas by predicting which signals are directly visible and which are blocked by the buildings. Many different 3D-mapping-aided (3DMA) GNSS techniques have been demonstrated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::099976bd4d7ce889efa6adc78e13abd0
https://doi.org/10.33012/2018.16070
https://doi.org/10.33012/2018.16070
Publikováno v:
Proceedings of the 30th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2017).
The restrictions on operating Micro Air Vehicles (MAVs) with a mass below 200g in an urban environment are greatly reduced compared to heavier Air Vehicles. Operating MAVs directly above streets and close to buildings brings two key challenges compar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bafb7e763358d94cad2669366a09115c
https://doi.org/10.33012/2017.15211
https://doi.org/10.33012/2017.15211
Autor:
Paul D. Groves, Mounir Adjrad
Publikováno v:
2017 European Navigation Conference (ENC).
Conventional single-epoch GNSS positioning in dense urban areas can exhibit errors of tens of meters due to blockage and reflection of signals by the surrounding buildings. Here, we present the first implementation of 3D-mapping-aided (3DMA) GNSS to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5b60fe8414884070a9eaa889f09d996
https://doi.org/10.1109/euronav.2017.7954199
https://doi.org/10.1109/euronav.2017.7954199
Publikováno v:
IET Communications. 8:1800-1809
In this study, the authors present a novel geometrically driven multilateration technique that is based on ultra-wideband (UWB) technology. The authors refer to their proposed solution as time reflection of arrival (TROA). They demonstrate in this st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62009a9e7da4f5039c09407e7c60502f
https://doi.org/10.1049/iet-com.2013.0815
https://doi.org/10.1049/iet-com.2013.0815