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논문 기본 정보

자료유형
학술저널
저자정보
O-Jong Kim (Seoul National University) Sunkyoung Yu (Seoul National University) Heekwon No (Seoul National University) Changdon Kee (Seoul National University) Minwoo Choi (Republic of Korea Air Force) Hyojeong Seok (Korea Aerospace Research Institute) Donghwan Yoon (Telecommunications Technology Association) Byungwoon Park (Sejong University) Cheolkyu Jee (Agency for Defense Development)
저널정보
한국항공우주학회 International Journal of Aeronautical and Space Sciences International Journal of Aeronautical and Space Sciences Volume.18 Number.3
발행연도
2017.9
수록면
545 - 554 (10page)
DOI
10.5139/IJASS.2017.18.3.545

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초록· 키워드

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Among various applications of the High Altitude Long Endurance (HALE) Unmanned Aerial Vehicle (UAV), this paper has a focus on the Global Positioning System (GPS) utilizing pseudolite and its improved performance, particularly during the multi-purpose missions. In a multi-purpose mission, the HALE UAV follows a specified flight trajectory for both navigation applications and missions. Some of the representative HALE missions are remote exploration, surveillance, reconnaissance, and communication relay. During these operations, the HALE UAV can also be an additional positioning signal source as it broadcast signals using pseudolite. The pseudolite signal can improve the availability, accuracy, and reliability of the GPS particularly in areas with poor signal reception, such as shadowed regions between tall buildings. The improvement in performance of navigation is validated through simulations of multi-purpose missions of the solar-powered HALE UAV in an urban canyon. The simulation includes UAV trajectory generation at stratosphere and uses actual geographical building data. The results indicate that the pseudolite-equipped HALE UAV has the potential to enhance the performance of the satellite navigation system in navigationally degraded regions even during multi-purpose operations.

목차

Abstract
1. Introduction
2. HALE UAV
3. Simulation Environments
4. Simulation Results
5. Conclusion
References

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