一种基于角速率的改进旋转矢量姿态更新算法  

An Improved Attitude Algorithm of Rotation Vector Based on Angular Velocity

作　　者：王君 宋蔚阳[1] 吴骁航 Wang Jun;Song Wei-yang;Wu Xiao-hang(Beijing Institute of Space Long March Vehicle,Beijing,100076)

机构地区：[1]北京航天长征飞行器研究所,北京100076

出　　处：《导弹与航天运载技术》2020年第3期38-42,共5页Missiles and Space Vehicles

摘　　要：为了提高姿态更新精度,提出了一种利用前周期角速率进行优化的改进旋转矢量姿态更新算法。通过对基于角速率的旋转矢量更新算法及其算法误差的推导,针对单子样、双子样、改进双子样算法在圆锥运动条件下情况进行了仿真,并开展跑车试验。仿真结果表明,在高动态的圆锥运动条件下,利用前周期角速率的优化双子样算法,比传统的姿态更新算法具有更高的精度;跑车试验结果验证了算法的正确性和有效性。To improve the accuracy of attitude updating,the optimal rotation vector algorithms are proposed based on pre-angular.The rotation vector algorithms using pre-angular and calculation errors are deduced.The simulation analyses of single-sample,two-sample,optimal two-sample are made.The simulation results indicate that the performance of the optimal algorithm using pre-angular increment is better than traditional algorithm.The vehicle test verified the correctness and effectiveness of the algorithm.

关 键 词：姿态更新算法 误差补偿 旋转矢量 优化算法 

分 类 号：O242[理学—计算数学]