지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2013.10
- 수록면
- 523 - 526 (4page)
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In this paper, we introduce the type of spoofing signal and the method of spoofing mitigation. The spoofing has three type: simplistic, intermediate, sophisticated and we will be interested in the intermediate spoofing. The intermediate spoofers synchronize its counterfeit GNSS signals with the current broadcast GNSS signals. So, if the receiver is attacked by a spoofer, it should be able to detect the spoofing signal through the absolute and relative GNSS signal strength, signal strength changing rate, Bound and compare range rates, etc. There are two way to mitigate spoofing signal, elimination of spoofing channel through the signal processing and counterbalance of spoofing signal through the RF phase control. For simulation, we generated the intermediate spoofing signal using the software GNSS signal generator simulator(SGGS) , the intermediate spoofers synchronize its counterfeit GPS signals with the current broadcast GPS signals and generated the anti-spoofing signal to mitigate the spoofing signal. The software GPS receiver simulator(SGRS) received the mixed signal the spoofing, anti-spoofing and normal signal from SGGS, and process the signals. In paper, we can check that the DLL and PLL tracking loop error are generated and pseudo-range is changed linear according to mitigate to spoofing signal when the anti-spoofing signal is entered. As a result, we can check that navigation solution is changed from abnormal by spoofing signal to normal by anti-spoofing signal.
목차
Abstract
1. INTRODUCTION
2. OVERVIEW OF SPOOFING ATTACK AND DETECTION
3. Spoofing and Anti-Spoofing Signal Generator
4. ANALYSIS OF EFFECT OF ANTI-SPOOFING
5. CONCLUSION
REFERENCES
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