Akademik Veri Yönetim Sistemi
GEODESY AND CARTOGRAPHY, cilt.50, sa.1, ss.1-6, 2024 (Scopus)
. For users of Precise Point Positioning (PPP), Multi-GNSS Advanced Orbit and Clock Augmentation PPP signals provide corrective data. When using the PPP approach and/or PPP-Ambiguity Resolution
(AR) method, the QZSS signal provides globally applicable error corrections on satellite orbit, clock offset,
and code/phase biases. In addition, from FY2024, as a part of the MADOCA-PPP technology demonstration,
wide-area ionospheric correction data will be provided for the Asia-Oceania region. A software estimator of
precise satellite information developed by JAXA, Multi-GNSS Advanced Demonstration Tool for Orbit and
Clock Analysis (MADOCA), allows u-blox CO99-ZED-F9P and MSJ 3008-GM4-QZS utilizing MADOCA-PPP
to be used in GNSS applications that need sub-decimetre precision but don’t have to be expensive. Errors
caused by positioning satellites are computed by using observation data from domestic and overseas GNSS
monitoring station networks such as IGS and MIRAI, and obtained correction data is transmitted from QZSS
signal to provide highly precise positioning augmentation services that can be used in the Asia-Oceania
Region. Users may utilize the PPP technique for high-precision locating by employing a GNSS receiver that
supports the QZSS signals. This paper describes an experiment carried out with the static method to combine GPS, GLONASS, and QZSS signals in the project site (ISHI, USUD and MIZU stations in Japan). This paper examines the GPS/GLONASS/QZSS obtainable accuracy. These obtained results indicate that integrating
GPS system with GLONASS and QZSS is favoured for surveying applications. It appears that integrating GPS/
GLONASS/QZSS (MADOCA precise ephemeris file) static measurements in the study area between 0–4 millimetres accuracy can be guaranteed on all occasions