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Impact of Trivial Baseline into GNSS Network Adjustment

GNSS 망조정에 종속기선이 미치는 영향

  • Yun, Seong-Hyeon (Department of Eco-Friendly Offshore Plant FEED Engineering, Changwon National University) ;
  • Lee, Hungkyu (School of Civil, Environmental and Chemical Engineering, Changwon National University) ;
  • Park, Jong-Kyung (Department of Civil Engineering, Changwon National University)
  • 윤성현 (창원대학교 대학원 친환경해양플랜트 FEED 공학) ;
  • 이흥규 (창원대학교 토목환경화공융합공학부) ;
  • 박종경 (창원대학교 산업대학원 토목공학과)
  • Received : 2018.03.02
  • Accepted : 2018.04.06
  • Published : 2018.04.30

Abstract

This study examined the impact of trivial baselines obtained from GNSS single-baseline processing into a network adjustment in terms of accuracy and estimated coordinates sets. To this end, depending on the inclusion of the dependent baselines, three different types of experimental GNSS networks were composed and adjusted. The results showed that the networks including the trivial baselines are generally overestimated, but differences in the derived coordinates are limited at the millimeter level. A comparison of the adjusted coordinates with those published by the national geodetic agency showed that results of the network consisting of only the independent baselines are more constant than those of the networks with trivial baselines. Finally, a trivial baseline should be excluded from the GNSS network adjustment with a consideration of the realistic accuracy presentation and data processing burden.

Keywords

Accuracy;Baseline Processing;GNSS;Network Adjustment;Trivial Baselines

Acknowledgement

Supported by : 한국연구재단

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