【摘要】 星敏感器是一种精度极高的姿态敏感器。基于恒星敏感器的姿态确定问题,从理论上推导了利用TRIAD算法,QUEST算法和Euler-q算法求解姿态矩阵的公式;以Wahba损失函数为指标,利用确定已知的方向余弦阵、恒星观测矢量及在噪声干扰下的星敏感器的观测矢量,对比研究了各种算法的优缺点。利用一个标准星表,通过仿真计算验证了上述三种算法的正确性和有效性。更多还原

【Abstract】 Star sensor is a very high accuracy instrument for attitude determination.The method of attitude determination based on star vector is studied.The formula to calculate attitude matrix with TRIAD algorithm,QUEST algorithm and EULERq algorithm are deduced theoretically.With the Wahba damp function as index,the features of the three algorithms are studied under conditions of certain direction cosine matrix,star observation vetor,and observation vector of star sensor with noise disturbance.The simulation results show the effectivity and correctness of above three algorithms according to a standard table of fixed stars.更多还原