IEEJ Transactions on Electronics, Information and Systems
Online ISSN : 1348-8155
Print ISSN : 0385-4221
ISSN-L : 0385-4221
<Electronics Applications>
Plan of Time Management of Satellite Positioning System using Quasi-zenith Satellite
Yasuhiro TakahashiMiho FujiedaJun AmagaiShoichiro YokotaKazuhiro KimuraHiroyuki ItoShin'ichi HamaTakao MorikawaIsao KawanoSatoshi Kogure
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2005 Volume 125 Issue 8 Pages 1209-1216

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Abstract
The Quasi-Zenith satellites System (QZSS) is developed as an integrated satellite service system of communication, broadcasting and positioning for mobile users in specified regions of Japan from high elevation angle. Purposes of the satellite positioning system using Quasi-Zenith satellite (QZS) are to complement and augment the GPS. The national institutes concerned have been developing the positioning system using QZS since 2003 and will carry out experiments and researches in three years after the launch.
In this system, National Institute of Information and Communications Technology (NICT) is mainly in charge of timing system for the satellite positioning system using QZS, such as onboard hydrogen maser atomic clock and precise time management system of the QZSS. We started to develop the engineering model of the time management system for the QZSS. The time management system for the QZSS will be used to compare time differences between QZS and earth station as well as to compare between three onboard atomic clocks. This paper introduces time management of satellite positioning system using the QZSS.
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© 2005 by the Institute of Electrical Engineers of Japan
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