Architecture Design for Maritime Centimeter-Level GNSS Augmentation Service and Initial Experimental Results on Testbed Network
1
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
In this paper, we overview the system development status of the national maritime precise point positioning–real-time kinematic (PPP-RTK) service in Korea, also known as the Precise POsitioning and INTegrity monitoring (POINT) system. The development of the POINT service began in 2020, and the open service is scheduled to start in 2025. The architecture of the POINT system is composed of three provider-side facilities—a reference station, monitoring station, and central control station—and one user-side receiver platform. Here, we propose the detailed functionality of each component considering unidirectional broadcasting of augmentation data. To meet the centimeter-level user positioning accuracy in maritime coverage, new reference stations were installed. Each reference station operates with a dual receiver and dual antenna to reduce the risk of malfunctioning, which can deteriorate the availability of the POINT service. The initial experimental results of a testbed from corrections generated from the testbed network, including newly installed reference stations, are presented. The results show that the horizontal and vertical accuracies satisfy 2.63 cm and 5.77 cm, respectively. For the purpose of (near) real-time broadcasting of POINT correction data, we designed a correction message format including satellite orbit, satellite clock, satellite signal bias, ionospheric delay, tropospheric delay, and coordinate transformation parameters. The (near) realtime experimental setup utilizing (near) real-time processing of testbed network data and the designed message format are proposed for future testing and verification of the system.
Abstract
In this paper, we overview the system development status of the national maritime precise point positioning–real-time kinematic (PPP-RTK) service in Korea, also known as the Precise POsitioning and INTegrity monitoring (POINT) system. The development of the POINT service began in 2020, and the open service is scheduled to start in 2025. The architecture of the POINT system is composed of three provider-side facilities—a reference station, monitoring station, and central control station—and one user-side receiver platform. Here, we propose the detailed functionality of each component considering unidirectional broadcasting of augmentation data. To meet the centimeter-level user positioning accuracy in maritime coverage, new reference stations were installed. Each reference station operates with a dual receiver and dual antenna to reduce the risk of malfunctioning, which can deteriorate the availability of the POINT service. The initial experimental results of a testbed from corrections generated from the testbed network, including newly installed reference stations, are presented. The results show that the horizontal and vertical accuracies satisfy 2.63 cm and 5.77 cm, respectively. For the purpose of (near) real-time broadcasting of POINT correction data, we designed a correction message format including satellite orbit, satellite clock, satellite signal bias, ionospheric delay, tropospheric delay, and coordinate transformation parameters. The (near) realtime experimental setup utilizing (near) real-time processing of testbed network data and the designed message format are proposed for future testing and verification of the system.
참고문헌 (17)
- Quasi-Zenith Satellite System Interface Specification, "Cabinet Office", Centimeter Level Augmentation Service, ~, pp.IS-QZSS-L6-005 (2022)
- Dach, R., "User manual of the Bernese GNSS Software, Version 5.2" (2015), Astronomical Institute
- Estey, L. H, "TEQC: the multipurpose toolkit for GPS", GLONASS data, 1999, pp.3, 42~49
- Ge, M., "Resolution of GPS carrier-phase ambiguities in Precise Point Positioning (PPP) with daily observations", Journal of Geodesy, 82, pp.389~399 (2008)[DOI]
- Hirokawa, R., "Compact SSR messages with integrity information for satellite based PPP-RTK service", Proceedings of the 29th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2016), pp.3372~3376 (2016)
- International Maritime Organization, "Revised Maritime Policy and Requirements for a Future Global Navigation Satellite System Resolution A.915(22)", ~ (2001)
- Jeon, T.-H, "An Environmental Analysis of Reference Station for Maritime Precise PNT System", 2021 IPNT Conference, pp.39~42 (2021)
- Kee, C., "Wide Area Differential GPS", Navigation, 38, pp.123~145 (1991)[DOI]
- Kee, C., "Trend of Standardization of the GNSS Augmentation Message", TTA Journal, 147, pp.95~102 (2013)
- Kouba, J, "Precise Point Positioning using IGS orbit and clock products", Solutions, 5, pp.12~28 (2001)[DOI]
- Lee, Y, "Study on the Deployment of Precise PNT Reference Stations for Optimizing User Position Performance", 2020 IPNT Conference, pp.249~252 (2020)
- Martini, I., "PPP and Galileo High Accuracy Service with Satellite Selection Strategies for Kinematic Applications", Proceedings of the 35th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2022), pp.667~682 (2022)
- Park, S. G, "Architecture Design of Ground-based Maritime Precise PNT System", 2021 IPNT Conference, pp.35~38 (2021)
- "RTCM Special Committee No.104, Differential GNSS (global navigation satellite systems) services – version 3 + amendment 3 (RTCM Standard No. 10403.3)", ~ (2022)
- Takac, F, "The Relationship between Network RTK Solutions MAC, VRS, PRS, FKP and i-MAX", Proceedings of ION GNSS, pp.348~355 (2008)
- Teunissen, P. J., "Performance of the LAMBDA method for fast GPS ambiguity resolution", Navigation, 44, pp.373~383 (1997)[DOI]
- Wübbena, G., "PPP-RTK: Precise point positioning using state-space representation in RTK networks", Proceedings of ION GNSS 2005, pp.2584~2594 (2005)