講演抄録/キーワード |
講演名 |
2007-04-17 14:50
Low-Earth Orbit Satellite Positioning System With Remotely Controlled On-Board Clocks ○Fabrizio Tappero・Andrew Dempster(Univ. of New South Wales)・Toshiaki Iwata(AIST)・Paolo Tortora(Univ. of Bologna) SANE2007-28 |
抄録 |
(和) |
In the present work a new concept of global navigation satellite system, which does not require on-board atomic references, is presented. This novel concept consists of a constellation of compact low-Earth orbit positioning satellites that are equipped with on-board steerable clocks, i.e. voltage controlled crystal oscillator (VCXO). An appropriate ground-satellite synchronization network is responsible for keeping in lock step clocks on-board visible satellites with a master atomic reference located on the ground. Regional/local clock synchronization, low-weight satellites and low manufacturing cost are some of the peculiar aspects of this novel system. Key issues such as number and spatial location of required synchronization stations, clock de-synchronization issues and positioning accuracy are extensively discussed. A software simulator specifically developed for studying its feasibility is also presented together with a plan to develop a micro-satellite payload to demonstrate the feasibility of such system. |
(英) |
In the present work a new concept of global navigation satellite system, which does not require on-board atomic references, is presented. This novel concept consists of a constellation of compact low-Earth orbit positioning satellites that are equipped with on-board steerable clocks, i.e. voltage controlled crystal oscillator (VCXO). An appropriate ground-satellite synchronization network is responsible for keeping in lock step clocks on-board visible satellites with a master atomic reference located on the ground. Regional/local clock synchronization, low-weight satellites and low manufacturing cost are some of the peculiar aspects of this novel system. Key issues such as number and spatial location of required synchronization stations, clock de-synchronization issues and positioning accuracy are extensively discussed. A software simulator specifically developed for studying its feasibility is also presented together with a plan to develop a micro-satellite payload to demonstrate the feasibility of such system. |
キーワード |
(和) |
GNSS / LEO / Synchronization / Atomic Clock / Time Keeping System / / / |
(英) |
GNSS / LEO / Synchronization / Atomic Clock / Time Keeping System / / / |
文献情報 |
信学技報, vol. 107, no. 2, SANE2007-28, pp. 145-150, 2007年4月. |
資料番号 |
SANE2007-28 |
発行日 |
2007-04-09 (SANE) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
SANE2007-28 |