工学博士学位论文 目前，扩展卡尔曼滤波是研究初始对准和惯性/GPS组合导航问题的一个主要手段。 但初始对准和惯性/GPS组合导航问题本质上是非线性的，对-Engineering PhD thesis Currently, EKF is the initial alignment study and inertial / GPS navigation of a major means. However, initial alignment and inertial / GPS navigation

采用四元数方法推导出SDINS数学平台角误差方程和速度误差方程，并以此建立非线性初始对准误差模型，应用扩展卡尔曼滤波(EKF)进行精对准，确定初始失调角。-using quaternion approach derived platform SDINS mathematical equations and the error rate of error equation, and the establishment of this initial alignment error nonlinea