An Improved Parameter Estimation Method for High-Efficiency Multi-GNSS-Integrated Orbit Determination
نویسندگان
چکیده
The increased number of satellites and stations leads to the serious time consumption integrated precise orbit determination (POD), especially in current global navigation satellite system (GNSS) with more than 120 satellites. To improve computational efficiency multi-GNSS-integrated POD, this paper proposed an improved parameter estimation method based on intel oneAPI high-performance computing, where inactive parameters are eliminated a batch mode. Compared classical “one-by-one” elimination, efficiencies were significantly ratios 2.53, 4.21, 5.38 for 79, 126, 171 stations’ GPS/BDS/Galileo/GLONASS-integrated respectively. elapsed by using 126 was same as that 79 POD method. In terms precision, one-dimensional root mean square error (RMS) reductions 0.1 cm (7%), 34.3 (11%), 1.9 (18%), 0.4 (8%), 0.2 (13%), (13%) GPS, BDS GEO, IGSO, MEO, Galileo, GLONASS satellites,
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ژورنال
عنوان ژورنال: Remote Sensing
سال: 2023
ISSN: ['2315-4632', '2315-4675']
DOI: https://doi.org/10.3390/rs15102635