Browse > Article

Study on the Improvement of the Positioning Accuracy for Inverted RTK Using FARA  

Choi Byung Kygu (인하대학교 지리정보공학과)
Lim Sam Sung (인하대학교 지리정보공학과)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.22, no.3, 2004 , pp. 217-223 More about this Journal
Abstract
In order to improve real-time positioning accuracy, a number of methods have been tested and one of those is the inverted RTK(Real-time kinematic) that gives a precise positioning by handling carrier phase measurements. For the inverted RTK positioning, it needs the L1 phase measurement at least for 1～2 minutes and the additional reference stations/communication system and a data processing server are required. The L1 code and carrier phase measurements for real-time application are used simultaneously and then Kalman filter is applied to estimate integer ambiguities. Double differenced integer ambiguities are resolved by utilizing the FARA(Fast Ambiguity Resolution Approach). In this paper, we propose the method to improve the positioning accuracy and performed the field tests for several baselines from DAEJ reference station in KAO(Korea Astronomy Observatory).
Keywords
Inverted RTK; Integer ambiguity; Kalman filter; FARA;
Citations & Related Records
연도 인용수 순위
  • Reference
1 박정현, 이용욱, 권재현, 강준묵 (2003), LAMBDA 기법을 활용한 L1 반송파의 GPS 기선해석 프로그램 개발, 한국측량학회지, 제 21권, 제 2호, pp. 173-180
2 Chui C.K and Chen G. (1990), Kalman Filtering with Real-time Application, second Edition, pp, 23-28.
3 Erickson, C. (1992), An Analysis of Ambiguity Resolution Techniques for Rapid Static GPS Surveys Using Single frequency Data, Proceedings of IQN GPS-92, pp. 39-42
4 Frei, E. and Beutler, G. (1990), Rapid static positioning based on the Fast Ambiguity Resotution Approach 'FARA': Theory and first results, Manuscripta Geodaetica, 15, pp. 325-356
5 Hofmann-Wellenhof, B., Lichtenegger, H. and Collins, J. (2001), GIobal Positioning System Theory and Practice, Springer-Verlag, Wien, New York
6 Teunissen P.J.G. (1994), A new method for fast carrier phase ambiguity estimation, Proceedings of IEEE PLANS ' 94, Las Vegas, NV, pp. 562-573
7 최병규 (2003), L1 반송파를 이용한 실시각 측위 정밀도 향상에 대한 연구, 석사 학위논문, 충남대학교 대학원
8 최윤수, 고준환, 이기도 (2003), GPS 장기선 해석에 관한 기초 연구, 한국측량학회지, 제 21권, 제 2호, pp. 123-129
9 박운용, 송연경, 이현우 (2004), RTK GPS를 이용한 대형구조물의 실시간 경보 시스템, 한국측량학회지, 제 22권, 제 1호, pp. 11-19
10 Goad, C.C. (1990), Optimal Filtering of Pseudoranges and Phases from Single-Frequency GPS Receivers, Navigation: Journal of the Institute of Navigation, Vol. 37, No. 3