【摘要】 静基座大方位失准角的捷联惯导系统误差方程是非线性的,如何对静基座大方位失准角的捷联惯导系统进行初始对准是需要解决的问题。本文提出了基于Unscented转换的Unsented卡尔曼滤波进行捷联惯导系统对准的方法。分别通过扩展卡尔曼滤波和Unsented卡尔曼滤波进行仿真计算,结果验证了Unscented卡尔曼滤波的有效性与优越性。更多还原

【Abstract】 The error function is nonlinear when the azimuth misalignment angle of SINS on static base is large,and it’s a problem that how to align such SINS whose azimuth misalignment angle is large.An approach of unscented kalman filter based on unscented transformation is presented.The initial alignment of large azimuth misalignment is simulated by extended kalman filter and Unscented kalman filter respectively,and the results show that using the Unscented kalman filter is more effective and superior than using extended kalman filter.更多还原