국내 해양 센티미터급 보강 시스템의 성능 분석
Performance Analysis of Maritime Centimeter-level Augmentation System in Korea
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초록
In this study, we analyze the performance of the Precise POsitioning and INTegrity monitoring (POINT) system, a Precise Point Positioning (PPP)-Real-Time Kinematic (RTK) based maritime precise Positioning, Navigation and Timing (PNT) system currently under development in Korea. The POINT system is a centimeter-level Global Positioning System (GPS) augmentation system that generates correction and integrity information based on GPS measurements received from the Continuously Operating Reference Station (CORS) of the National Maritime PNT OFFICE (NMPNT). To analyze the performance of the system, we performed static and dynamic experiments and compared the performance results with those of two existing precise positioning methods, Real-Time Kinematic (RTK) and Precise Point Positioning (PPP). From the results of the static experiment, the horizontal and vertical Root Mean Square (RMS) of POINT was 3.28 cm and 7.19 cm, respectively. From the results of the dynamic experiment in a maritime environment, the horizontal and vertical RMSs of POINT are 3.63 cm and 8.14 cm compared to RTK and 7.75 cm and 12.55 cm compared to PPP, respectively.
Abstract
In this study, we analyze the performance of the Precise POsitioning and INTegrity monitoring (POINT) system, a Precise Point Positioning (PPP)-Real-Time Kinematic (RTK) based maritime precise Positioning, Navigation and Timing (PNT) system currently under development in Korea. The POINT system is a centimeter-level Global Positioning System (GPS) augmentation system that generates correction and integrity information based on GPS measurements received from the Continuously Operating Reference Station (CORS) of the National Maritime PNT OFFICE (NMPNT). To analyze the performance of the system, we performed static and dynamic experiments and compared the performance results with those of two existing precise positioning methods, Real-Time Kinematic (RTK) and Precise Point Positioning (PPP). From the results of the static experiment, the horizontal and vertical Root Mean Square (RMS) of POINT was 3.28 cm and 7.19 cm, respectively. From the results of the dynamic experiment in a maritime environment, the horizontal and vertical RMSs of POINT are 3.63 cm and 8.14 cm compared to RTK and 7.75 cm and 12.55 cm compared to PPP, respectively.