摘要
在捷联系统中将角速率转换成角增量,再利用传统的基于角增量的圆锥误差补偿算法解算姿态会使精度下降、计算量增大。针对此问题,推导了以角速率为输入的圆锥误差补偿算法,详细推出了三子样算法的具体形式,并在圆锥运动条件下对算法进行优化,进一步提高了算法的精度和可靠性。在典型圆锥运动条件下将所提算法的解算结果和解析解做了仿真比较,结果表明算法有效可行,且优化后的算法精度更高。
In the strap-down inertial navigation system （ SINS）,if the angular rate is converted into angular incremental and the traditional coning error compensation algorithm based on the angular increment is used,the attitude calculation will have a decreased accuracy and increased calculation cost .To solve the problem,a coning error compensation algorithm that taking directly the angular rate as input was proposed . The concrete form of the three-sample-algorithm was given in detail .In order to further improve the accuracy and reliability,the algorithm was optimized under the condition of coning motion .The result of the proposed algorithm was compared with that of the analytical method by simulation under the condition of typical coning motion.The simulation result showed that the proposed algorithm is effective,feasible and has higher accuracy .
出处
《电光与控制》
北大核心
2014年第2期41-45,共5页
Electronics Optics & Control
基金
国家自然科学基金(61273049)
