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设计一种时分降低滤波器用来进行运载体惯导系统的动态对准和传递对准。假定运载体惯导系统为已标定的。在运载体水平直线运动的短时间内，两个二阶滤波器以时分工作方式估计平台水平失调角。在消除水平失调角后，运载体在垂直与当地垂线的水平面内机动，此时用一个三阶（或四阶）滤波器来估计方位失调角。另外，在本文中给出该滤波器的数据压缩算法，来提高估计精度。
A time-dependent reduction filter is designed to perform dynamic alignment and transfer alignment of the carrier inertial navigation system. It is assumed that the carrier inertial system is calibrated. In a short period of time, the two second-order filters estimate the horizontal misalignment angle of the platform in a time-division manner. After eliminating the horizontal misalignment angle, the carrier maneuvering in a horizontal plane perpendicular to the local vertical. A third order (or fourth order) filter is then used to estimate the misalignment angle. In addition, the data compression algorithm of this filter is given in this paper to improve the estimation accuracy.