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http://dx.doi.org/10.11003/JPNT.2022.11.2.83

GNSS Antenna PCO/PCV and Position Changes due to the Switch IGS08/igs08.atx to IGS14/igs14.atx

Choi, Byung-Kyu (Space Science Division, Korea Astronomy and Space Science Institute)
Sohn, Dong-Hyo (Space Science Division, Korea Astronomy and Space Science Institute)
Yoon, Ha-Su (Space Geodetic Observation Center, National Geographic Information Institute)
Lee, Sang Jeong (Department of Electronics Engineering, Chungnam National University)

Publication Information

Journal of Positioning, Navigation, and Timing / v.11, no.2, 2022 , pp. 83-89 More about this Journal

Abstract

For precise GNSS applications, the antenna phase center correction (PCC) is absolutely required. The PCC magnitude can reach the centimeter level with the antenna structure. In the present study, we first investigate the phase center offset (PCO) and phase center variation (PCO) of three different antenna models in two different reference frames, IGS08/igs08.atx and IGS14/igs14.atx. Clear L1 and L2 PCO differences were found between IGS08 and IGS14. In addition, the PCV showed characteristics that is dependent upon the signal direction (azimuth and elevation angle). The remarkable thing is that the changes of a Dorne Margolin choke-ring antenna model (AOAD/MT DOME) was very small in two reference frames. In order to analyze changes in positions according to different reference systems, GNSS data obtained from DAEJ, SUWN, and TSKB stations were processed by the precise point positioning (PPP) method. We suggest that an antenna PCO/PCV can affect the precise GNSS positioning on the order of several millimeters in two different reference frames.

Keywords

GNSS; PCO; PCV; PPP;

Citations & Related Records

Reference

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