Ultra-tight GPS/IMU Integration based Long-Range Rocket Projectile Navigation

Handong Zhao; Zhipeng Li

doi:10.14429/dsj.66.8326

Handong Zhao Mechatronic Engineering Collage of North University of China
Zhipeng Li Mechatronic Engineering Collage of North University of China

DOI: https://doi.org/10.14429/dsj.66.8326

Keywords: Long-range rocket projectile, global position system, inertial measuring unit, ultra-tight integration, celestial navigation system, geomagnetism navigation system

Abstract

Accurate navigation is important for long-range rocket projectile’s precise striking. For getting a stable and high-performance navigation result, a ultra-tight global position system (GPS), inertial measuring unit integration (IMU)-based navigation approach is proposed. In this study, high-accuracy position information output from IMU in a short time to assist the carrier phase tracking in the GPS receiver, and then fused the output information of IMU and GPS based on federated filter. Meanwhile, introduced the cubature kalman filter as the local filter to replace the unscented kalman filter, and improved it with strong tracking principle, then, improved the federated filter with vector sharing theory. Lastly simulation was carried out based on the real ballistic data, from the estimation error statistic figure. The navigation accuracy of the proposed method is higher than traditional method.

Author Biographies

Handong Zhao, Mechatronic Engineering Collage of North University of China

Dr Handong Zhao, received his MSc from Beijing Institute of Technology in 1993, and received his PhD from Nanjing University of Science and Technology in 2008. Presently working as a Professor at North University of China. His research interest include: inertial navigation, integrated navigation and rocket projectile guidance and control.

Zhipeng Li, Mechatronic Engineering Collage of North University of China

Mr Zhipeng Li, received his bachelor degree of Engineering from North University of China, in 2010, and presently pursuing his PhD from North University of China. His research interest include: GPS navigation and integration navigation system designing.