13 May 2016 Research on the optimal structure configuration of dither RLG used in skewed redundant INS
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Abstract
The actual combat effectiveness of weapon equipment is restricted by the performance of Inertial Navigation System (INS), especially in high reliability required situations such as fighter, satellite and submarine. Through the use of skewed sensor geometries, redundant technique has been applied to reduce the cost and improve the reliability of the INS. In this paper, the structure configuration and the inertial sensor characteristics of Skewed Redundant Strapdown Inertial Navigation System (SRSINS) using dithered Ring Laser Gyroscope (RLG) are analyzed. For the dither coupling effects of the dither gyro, the system measurement errors can be amplified either the individual gyro dither frequency is near one another or the structure of the SRSINS is unreasonable. Based on the characteristics of RLG, the research on coupled vibration of dithered RLG in SRSINS is carried out. On the principle of optimal navigation performance, optimal reliability and optimal cost-effectiveness, the comprehensive evaluation scheme of the inertial sensor configuration of SRINS is given.
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Chunfeng Gao, Qi Wang, Guo Wei, Xingwu Long, "Research on the optimal structure configuration of dither RLG used in skewed redundant INS", Proc. SPIE 9834, Laser Technology for Defense and Security XII, 98340V (13 May 2016); doi: 10.1117/12.2223487; https://doi.org/10.1117/12.2223487
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