Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
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Analysis of Positioning Accuracy Using LX GNSS Network RTK

LX 위성측위 인프라기반 네트워크 RTK를 이용한 측위성능 분석

  • Ha, Jihyun (Spatial Information Research Institute, Korea Land and Geoinformatix Corporation) ;
  • Kim, Hyun-ho (Spatial Information Research Institute, Korea Land and Geoinformatix Corporation) ;
  • Jung, Wan-seok (Spatial Information Research Institute, Korea Land and Geoinformatix Corporation)
  • 하지현 (한국국토정보공사 공간정보연구원) ;
  • 김현호 (한국국토정보공사 공간정보연구원) ;
  • 정완석 (한국국토정보공사 공간정보연구원)
  • Received : 2015.11.13
  • Accepted : 2015.12.09
  • Published : 2015.12.30
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Abstract

The Spatial information research institute of the LX Korea land and geospatial informatix corporation manages infrastructure for the LX global navigation satellite system (GNSS), which comprises 30 monitoring stations nationwide. Since 2014, it has conducted network real-time kinematic (RTK) tests using the master-auxiliary concept (MAC). This study introduces the infrastructure of LX GNSS and presents the results of a performance analysis of the LX RTK service. The analysis was based on a total of 25 cadastral topographic control points in Jeonju, Seoul, and Incheon. For each point, performance was measured over one observation, two repeated observations, and five repeated observations. The measurements obtained from LX MAC and the VRS of the National Geographic Information Institute were compared with the announced coordinates derived from cadastral topographic control points. As a result, the two systems were found to have similar performance with average error and standard deviation differing only by 1 to 2 cm.

LX 한국국토정보공사 공간정보연구원에서는 2011년부터 LX 위성측위 (GNSS; global navigation satellite system) 네트워크를 구축하고 2014년부터 MAC (master-auxiliary correction) 방식의 네트워크 실시간 이동측위 (RTK; real-time kinematic) 전국망 운영 실험을 하고 있다. 본 연구에서는 LX GNSS 인프라의 구축 현황을 소개하고 LX GNSS RTK 서비스를 이용한 측위 성능 분석을 결과를 제시한다. 측위 성능 분석은 전북 전주, 서울, 그리고 인천에 설치된 지적도근점 중 총 25개를 이용하였으며, 1회 관측, 2회 중복관측, 그리고 5회 중복관측을 수행하였다. 측위 성능 비교를 위하여 한국국토정보공사 MAC과 국토지리정보원 VRS로 측량한 성과를 지적도근점의 고시좌표와 각각 비교하였다. 그 결과, 두 시스템이 평균오차와 표준편차가 1~2cm 수준으로 유사한 성능을 보였다.

Keywords

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