소프트웨어 RSIM을 위한 GPS/GLONASS 보정시스템 설계

Abstract

Current beacon-based differential GPS reference station and integrity monitor (RSIM) system consists of reference station (RS), integrity monitor (IM), and control station (CS) respectively. The Reference Station (RS) uses a reference receiver and a Minimum Shift Keying (MSK) modulator to generate the Radio Technical Commission for Maritime Services (RTCM) messages for broadcasting, and Integrity Monitor (IM) receives the RS broadcast and verifies that the information is within tolerance. The Control Station (CS) provides capabilities for real time system status monitoring and control of the functional and performance parameters of remote DGPS broadcast sites. However it is a dated system which lacks adaptability to accommodate equipment changes, new signals, new functionalities, and new services. Therefore, as the first step in preparing for the future DGNSS services, this paper focuses on the generation of differential corrections and integrity information based on GPS/GLONASS augmentation system. And it first designs the GPS/GLONASS augmentation system based on the software RSIM architecture, and then proposes the method for generating the GPS/GLONASS differential corrections. Finally it presents the comparison results of position accuracy with the proposed software RSIM system.eceiver and a Minimum Shift Keying (MSK) modulator to generate the Radio Technical Commission for Maritime Services (RTCM) messages for broadcasting, and Integrity Monitor (IM) receives the RS broadcast and verifies that the information is within tolerance. The Control Station (CS) provides capabilities for real time system status monitoring and control of the functional and performance parameters of remote DGPS broadcast sites. However it is a dated system which lacks adaptability to accommodate equipment changes, new signals, new functionalities, and new services. Therefore, as the first step in preparing for the future DGNSS services, this p