机载导弹空中二次快速传递对准方法研究

 针对机载导弹GPS/SINS组合导航系统,提出了一种空中动基座二次快速传递对准方法。该方法在对准第1阶段采用速度加姿态变化量匹配方法,主要完成航向对准,同时初步进行水平对准;在对准第2阶段采用速度匹配方法,其任务是在第1次传递对准的基础上,进一步完成水平对准。第2次传递对准可在数秒钟之内完成,因而缩短了携弹对准飞行时间。第2次的水平对准摆脱了机翼挠性变形的影响,提高了水平对准精度。仿真结果表明了方法的有效性。

Study on a Twice Rapid Transfer Alignment Approach to Missiles Carried Aboard in Flight

A twice rapid transfer alignment approach to missile GPS/SINS navigation systems on moving base in flight is put forward. In the first time transfer alignment it uses velocity matching plus attitude change matching and mainly performs azimuth alignment and primarily performs horizon alignment. In the second time transfer alignment, based on the first time transfer alignment, it uses velocity matching and performs horizon alignment once more. The first time transfer alignment can be finished in several seconds and therefore alignment time in captive flight is shortened. The second time transfer alignment gets rid of flexible influence and therefore enhances horizon alignment. Simulation shows it is efficient.