이중 차분 TCH 기반 TWSTFT 및 GPS 시각비교 성능분석
Instability Analysis of TWSTFT and GPS Time Comparison using a Double Difference Three-Cornered Hat
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Precise time synchronization is crucial for modern infrastructure but objectively evaluating the intrinsic performance of technologies such as Global Positioning System (GPS) Precise Point Positioning (PPP), Integer Precise Point Positioning (IPPP), P3, and Two-Way Satellite Time and Frequency Transfer (TWSTFT) is challenging due to the influence of local time source stability. This paper proposes a Double Difference-based Three-Cornered Hat (TCH) method to overcome this limitation. By applying this technique to analyze TWSTFT and GPS links between Korea Research Institute of Standards and Science (KRISS) and Physikalisch-Technische Bundesanstalt (PTB), we confirmed a stability of mid 10−17 for averaging times over 2×106 seconds, consistent with similar research by the National Institute of Standards and Technology (NIST). Our findings provide an important standard for evaluating high-precision links and offers a practical foundation for technology selection and system design in fields such as national time standards and defense.
Abstract
Precise time synchronization is crucial for modern infrastructure but objectively evaluating the intrinsic performance of technologies such as Global Positioning System (GPS) Precise Point Positioning (PPP), Integer Precise Point Positioning (IPPP), P3, and Two-Way Satellite Time and Frequency Transfer (TWSTFT) is challenging due to the influence of local time source stability. This paper proposes a Double Difference-based Three-Cornered Hat (TCH) method to overcome this limitation. By applying this technique to analyze TWSTFT and GPS links between Korea Research Institute of Standards and Science (KRISS) and Physikalisch-Technische Bundesanstalt (PTB), we confirmed a stability of mid 10−17 for averaging times over 2×106 seconds, consistent with similar research by the National Institute of Standards and Technology (NIST). Our findings provide an important standard for evaluating high-precision links and offers a practical foundation for technology selection and system design in fields such as national time standards and defense.