针对单轴旋转激光陀螺惯导系统存在周期性振荡误差较大、定位误差随时 间累积的问题,为提高系统的导航精度以及实现高自主性和强抗干扰性,对单轴旋转激 光陀螺惯导系统与多普勒计程仪组合导航方法进行了探讨,建立了组合导航系统模型, 并进行了仿真分析。结果表明,采用该组合导航方案可实现对单轴旋转激光陀螺惯导系 统误差进行较为准确的估计,组合导航系统输出的姿态角误差小于0.1',东向和北向速 度误差小于0.05kn,在24h内经度和纬度误差的最大值均小于0.02’。
Abstract
Aiming at the problem of single-axial rotation of ring laser gyroscope inertial navigation system(SRINS) that the bigger oscillation error and the position error cumulate with the time, the scheme of SRINS/DVL integrated navigation system is researched. The model of SRINS/DVL integrated navigation system is built. The simulation result shows that the SRINS/DVL integrated navigation system could estimate the error of SRINS, and the attitude error is less than 0.1’, the east and north velocity error is less than 0.05kn, the longitude and latitude error is less than 0.02’.
关键词
单轴旋转激光陀螺惯导系统 /
多普勒计程仪 /
组合导航
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Key words
single-axial rotation of ring laser gyroscope inertial navigation system (SRINS) /
Doppler velocity log (DVL) /
integrated navigation
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中图分类号：
U666.1
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脚注
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基金
国家863计划资助项目（编号:2013AA8094027B)
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