Scholarlink

The phase center of a GNSS antenna is impacted by site dependent effects, such as the monument and the surroundings. In order to correct for these effects, the GNSS stations need to be calibrated in situ. Since 2008, several in-situ station calibration campaigns have been performed in the Swedish CORS GNSS network, SWEPOS. The calibration is done by placing three reference GNSS antennas around the SWEPOS monument above points with well-known coordinates. By analyzing the observations from the SWEPOS station and the reference antennas together, the phase center offsets and variations can be determined. In this work, we present the results of these measurements, with focus on the latest campaign in 2025. The result show that the site dependent effects can introduce errors in the estimated station height of more than 1 cm.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

GNSS Station Calibration: Experience from the SWEPOS Network

  • 章节

  • 出版模式：

    开放获取

  • 发表日期：

    2026年

查看全文
  • Tobias Nilsson,
  • Martin Lidberg,
  • Tong Ning,
  • Lotti Jivall,
  • Christina Lilje,
  • Kent Ohlsson,
  • Jan Johansson

摘要

The phase center of a GNSS antenna is impacted by site dependent effects, such as the monument and the surroundings. In order to correct for these effects, the GNSS stations need to be calibrated in situ. Since 2008, several in-situ station calibration campaigns have been performed in the Swedish CORS GNSS network, SWEPOS. The calibration is done by placing three reference GNSS antennas around the SWEPOS monument above points with well-known coordinates. By analyzing the observations from the SWEPOS station and the reference antennas together, the phase center offsets and variations can be determined. In this work, we present the results of these measurements, with focus on the latest campaign in 2025. The result show that the site dependent effects can introduce errors in the estimated station height of more than 1 cm.