DOI QR코드

DOI QR Code

A Study on the Efficient Application for Cadastral Surveying of RTK-GPS

RTK-GPS의 지적측량에 효율적 적용 연구

  • Received : 2011.11.18
  • Accepted : 2012.01.05
  • Published : 2012.01.31

Abstract

The study conducted the measurement of RTK-GPS with changing the number of observation as the method to differ reference stations of RTK-GPS. Also it aimed to suggest an effective application plan for cadastral surveying based on the accuracy analysis accordingly. According to the result of selecting the study region, observing with different reference stations, and comparing with previous TS performance, the 1st reference station was calculated as ${\pm}0.024m$ for x-coordinate's RMSE and ${\pm}0.029m$ for y-coordinate's RMSE, and the 2nd reference station was calculated as ${\pm}0.040m$ for x-coordinate's RMSE and ${\pm}0.029m$ for y-coordinate's RMSE. All these results (the 1st and the 2nd reference stations) are allowed as acceptable performance within the margin of error according to the existing cadastral regulations, and there was no significant difference between two performances. Therefore, unless there was no problem in receiving GPS satellite data, it would be possible to secure stable performance enough with 1 observation. Depending on surveying environment that has possible problems in receiving data, however, 2 or more observations would be necessary to secure stable performance.

본 연구에서는 기준국을 달리함으로써 관측 횟수를 달리하여 RTK-GPS 측량을 시행하여 보고 이에 대한 정확도 분석을 토대로 지적측량에 효율적인 적용 방안을 제시하여 보고자 하였다. 실험지역을 선정하고 기준국을 달리하여 관측 후 기존 TS 성과와 비교한 결과, 제1기준국은 X좌표의 RMSE가 ${\pm}0.024m$, Y좌표의 RMSE가 ${\pm}0.016m$로 산출되었고, 제2기준국은 X좌표의 RMSE가 ${\pm}0.040m$, Y좌표의 RMSE가 ${\pm}0.029m$로 산출되었다. 이는 모두 현행 지적법령에서 규정하고 있는 성과인정 범위 이내의 오차이고, 더불어 두 성과의 차이는 크지 않았다. 따라서 GPS 위성자료 수신에 장애가 없다면 1회 관측으로도 충분히 안정적인 성과의 취득이 가능한 것으로 나타났다. 다만, 측량 환경에 따라 주변에 수신에 제약을 받는 요소가 있다면 이러한 지역에 대해서는 성과의 안정적인 취득을 위해 2회 이상의 관측이 필요할 것으로 판단된다.

Keywords

References

  1. Hubiao Lan, "Development of a Real-Time Kinematic GPS System : Design, Performance and Result", Dpt. of Geomatics Engineering, the University of Calgary, Canada, pp.14-17, 1996.
  2. Roh Tae Ho, Jang Ho Sik, Lee Jong Chool, "An Analysis of Accuracy for Road Horizontal Alignment by the Combined RTK GPS/GLONASS", Journal of the Korean Society for GeoSpatial Information System, Vol.10, No.2, pp.29-37, 2002.
  3. Sung-Eon Hong, "The Accuracy Analysis of Parcel Surveying by RTK-GPS and RTK-GPS/GLONASS", Journal of GISAK, Vol.14, No.2, pp.211-221, 2006.
  4. Jang, Sang Kyu, Hong, Soon Heon, Kim, Ga Ya, "The Analysis of Road Alignement and Construction GSIS Using RTK GPS and TS" Journal of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography, Vol.21, No.4, pp.293-299, 2003.
  5. In-Su Lee, "Accuracy Estimation of RTK GPS mapping in the Different Seasons", Journal of GISAK, Vol.13, No.1, pp.19-29, 2005.
  6. Kim Jae Hak, Chio Yun Soo, Lee Im Pyung, "A Study on Improving Method of Graphical Cadastral Surveying by RTK-GPS and aerial Orthophotograph", Journal of the Korean Society of Cadastre, Vol.20, No.2, pp.133-145, 2004.
  7. Lee Eun Soo, Kim Hong Jin, "Development of Surveying Program for Reconstruction of the Land Boundary Location using RTK GPS", Journal of the Korean Society of Cadastre, Vol.21, No.2, pp.95-104, 2005.
  8. Choi, Han Yong, "A Study on Parcel Coordinate to Decide by GPS", Master of Engineering, Chosun University, 1999.
  9. Jung, Han-Yong, "An Efficient Scheme of Cadastral Surveying Work Using RTK-GPS and Digital Plane Table", Master of Engineering, Chungbuk National University, 2006.
  10. MLTM, National Geographic Information Institute, A Surveying Wording Dictionary, p.182, 2003.