空空导弹动基座对准长时间空中修正方法

Long-Time Rectification in Flight for Transfer Alignment of AAMs

空空导弹应具备随时发射的能力,因此进入作战空域后如何长时间保持初始对准精度是必须解决的问题。为使传递对准方法应用于实际空空导弹中,提出了一套全新的包含时间延迟补偿的空中修正方法,并在一般速度匹配模型的基础上进行了"长时"传递对准的卡尔曼滤波器设计,之后选取实物惯测和六自由度运动台进行了半实物仿真验证,最后对仿真的结果进行了统计分析。仿真结果表明该方法能够有效补偿时间延迟误差,而且在长时间空中修正的过程中保持高精度(0.2°以内)对准。

Air-to-Air Missile （AAM） should have the capability of being launched at any time, so how to hold the accuracy of initial alignment for a long time after entering the fight airspace is a critical problem. For the sake of transfer alignment application in the real AAM, a method for long-time rectification in flight with time delay compensation was studied. A Kalman filter for long time transfer alignment was designed on the basis of the general transfer alignment model. Simulations were made based on the real IMU and the 6 DOF mobile platform, and analysis was made to the simulation results. The result shows that the algorithm can effectively compensate for the time delay error, （less than 0.2°） in long-time rectification. and realize the transfer alignment with a high accuracy