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Journal of the Korea Institute of Military Science and Technology 2009;12(5):615-621.
GPS/INS Integrated Navigation Systems Design for Spinning Smart Munitions
Jeong-Won Kim, Hee-Won Kang, Ho-Cheol Jeong, Dong-Hwan Hwang, Sang-Jeong Lee, Tae-Gyoo Lee, Ki-Won Song
1KARI
2Department of Electronics Engineering, Chungnam National University
3
회전하는 지능 포탄의 GPS/INS 통합 항법 시스템 설계
김정원, 강희원, 정호철, 황동환, 이상정, 이태규, 송기원
1한국항공우주연구원
2충남대학교 전자공학과
3국방과학연구소
Abstract
Since GPS receivers and INS algorithms do not work properly in the spinning vehicles due to change of the GPS signal and excess of the measurement limitation of the gyroscope, conventional GPS/INS integrated navigation systems do not provide accurate navigation outputs. This paper proposes a design method for GPS/INS integrated navigation systems of spinning vehicles. A special GPS receiver with a signal tracking loop for changed GPS signal caused by spinning and an INS with a roll estimation method are configured and the conventional integration filter is combined. The proposed method was verified through comparison of the navigation results. The result of the proposed method for the spinning vehicle was similar to that of the conventional navigation system without spinning.
Key Words: Smart Munitions, Spinning Vehicle, Signal Tracking Loop, Roll Estimation, GPS/INS Integrated Navigation System
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