Integral GPS and QZSS Ambiguity Resolution

Kubo, N, Wu, F and Yasuda, A 2004, 'Integral GPS and QZSS Ambiguity Resolution', Transactions of the Japan Society for Aeronautical and Space Sciences, vol. 47, no. 155, pp. 38-43.


Document type: Journal Article
Collection: Journal Articles

Title Integral GPS and QZSS Ambiguity Resolution
Author(s) Kubo, N
Wu, F
Yasuda, A
Year 2004
Journal name Transactions of the Japan Society for Aeronautical and Space Sciences
Volume number 47
Issue number 155
Start page 38
End page 43
Total pages 6
Publisher The Japan Society for Aeronautical and Space Sciences
Abstract The US GPS and the planed Quasi Zenith Satellite System (QZSS) will enhance the capability of quickly resolving the integer cycle carrier phase ambiguities in precise differential positioning. The paper describes numerical analysis of the positioning performance of combined GPS-QZSS system. The current ambiguity resolution method is employed to resolve all cycle ambiguities of combined GPS-QZSS system. The performance of ambiguity resolution on a short base-line of 1 km in Tokyo is analyzed for different scenarios of the present GPS and combined future GPS-QZSS system. It is also analyzed in the Asian cities of Seoul, Beijing and Shanghai. The ambiguity fix percentage is adopted here for evaluating the performance of ambiguity resolution. It indicates that increasing the number of satellites has a benefit on the capability of getting quick ambiguity resolution. It also indicates that the ambiguity fix percentage with both GPS and QZSS is much higher than that with only GPS on the short-baseline operation.
Subject Navigation and Position Fixing
DOI - identifier 10.2322/tjsass.47.38
ISSN 0549-3811
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