捷联寻的制导弹药的新型卡尔曼滤波器设计

A New Kalman Filter Design for Strapdown Homing Guidance System

针对捷联制导系统的自身特点,设计出用于估计导弹和目标在弹体坐标系中相对运动状态的卡尔曼滤波器,使滤波与制导在同一个坐标系即弹体坐标系内进行,避免了信息在弹体坐标系和惯性坐标系之间的多次转换,从而减少了信息损失.仿真结果表明,该方法能够满足捷联制导系统的要求.

A new Kalman filter in body coordinates is presented to estimate the relative movement variables between the missile and target for a strapdown homing guidance system. By using the Kalman filter in the body coordinates, loss of information due to the transformation between body and inertial coordinates is avoided. Simulation results showed that the Kalman filter designed for the strapdown homing guidance system satisfy the performance index for guided ammunition system.