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GPS L1/갈릴레오 E1 복합 신호 처리를 통한 위치 정확도 향상 연구
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- 발행일
- 201106
- 출처
- 통신위성우주산업연구회논문지, v.6 no.1, pp.68-74
- ISSN
- 2384-3853
- 출판사
- 통신위성,우주산업연구회
- 협약과제
- 11PR4900, 다원화 항법 주파수 감시 및 이용 기술 개발, 이상욱
- 초록
- In this paper, we present the enhancement results such as availability and accuracy using the GPS L1 and Galileo E1signal combination. To enhance the acquisition and tracking performance of signal processing in GNSS receiver. several tracking loops with integrator, discriminator, and loop filter module are applied. Also, this paper presents the performance comparison results between prototype receiver equipped with hardware board and software receiver. Also the tracking loop performance of real hardware receiver is verified by comparing with tracking accuracy, sensitivity occurred by the Spirent simulator. Especially, to process the Galileo E1 signal, it is used the a power early late type which is the typical type for DLL discriminator.
- KSP 제안 키워드
- GNSS receiver, Performance comparison, Signal Combination, Signal Processing, Tracking Performance, loop-filter(LF), software receiver, tracking accuracy, tracking loop performance