摘要
本文研究了在船舶摇摆运动下的捷联惯导系统姿态算法问题，对于不同的采样周期，姿态误差不同的情况，得出了船用捷联系统应该采用等效转动矢量法消除不可交换性误差，以提高姿态精度的结论，仿真结果表明在不减小采样周期的前提下，等效转动矢量法能大大提高姿态精度。
The purpose of this paper is to study the attitude algorithm of ship strapdown inertial navigation system under the condition of swaying motion .It shows that the system should use the rotation vector to decrease the noncommutativity error to improve the attitude accuracy .The rotation vector differential equation under the swaying motion condition is derived .The simulation results show that the rotation vector can greatly increase the attitude accuracy.
出处
《中国惯性技术学报》
EI
CSCD
1997年第4期16-19,共4页
Journal of Chinese Inertial Technology
