재구성 가능한 다중 위성항법 GNSS 신호 생성 시뮬레이터를 이용한 KPS 민간 신호 후보군 OTA 시험 연구
OTA Test of KPS Civil Signal Candidates by Using Reconfigurable Multi-Constellation Frequency GNSS Signal Generation Simulator
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This paper presents a reconfigurable Global Navigation Satellite System (GNSS) signal generation simulator that supports multi-constellation and multi-frequency signal generation, including Korean Positioning System (KPS) civil candidate signals in the L6 and S bands. The generator allows flexible configuration of Pseudo Random Noise (PRN) code, modulation, and navigation message. To validate the performance of the simulator, digital Intermediate Frequency (IF) signal tests and Over the Air (OTA) experiments using a Software Designed Receiver (SDR) were conducted. The results confirm successful signal generation, acquisition, tracking, and positioning. Despite interference in the S band, the generator can be effectively applied for candidate signal evaluation and future KPS signal development.
Abstract
This paper presents a reconfigurable Global Navigation Satellite System (GNSS) signal generation simulator that supports multi-constellation and multi-frequency signal generation, including Korean Positioning System (KPS) civil candidate signals in the L6 and S bands. The generator allows flexible configuration of Pseudo Random Noise (PRN) code, modulation, and navigation message. To validate the performance of the simulator, digital Intermediate Frequency (IF) signal tests and Over the Air (OTA) experiments using a Software Designed Receiver (SDR) were conducted. The results confirm successful signal generation, acquisition, tracking, and positioning. Despite interference in the S band, the generator can be effectively applied for candidate signal evaluation and future KPS signal development.