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分析了振动条件下导弹捷联惯导系统(SINS)圆锥运动形成的原因,研究了经典圆锥运动补偿算法及其估计算法漂移的局限性。针对经典算法存在的局限性以及导弹等武器系统所处振动环境的特点,对标准圆锥补偿算法进行了优化。提出了振动条件下,在保证不影响导航计算机正常工作的前提下,圆锥运动补偿时有效利用前一周期姿态值的优化算法是有必要的。仿真和试验结果表明,在振动条件下,在进行圆锥运动补偿时应当采用标准优化圆锥运动补偿算法。
The reason of the cone motion of missile SINS under vibration condition is analyzed. The classical conical motion compensation algorithm and the limitation of its estimation algorithm drift are studied. According to the limitations of classical algorithms and the characteristics of vibration environment such as missiles and other weapon systems, the standard cone compensation algorithm is optimized. Under the premise of not affecting the normal working of navigation computer under the condition of vibration, it is necessary to optimize the algorithm of effectively utilizing the attitude of the previous cycle in the coning motion compensation. The simulation and experimental results show that under the condition of vibration, the standard optimization of conical motion compensation should be used in the coning motion compensation.