无依托瞄准技术在运载火箭基准确立上应用的研究  

Application of Unsupported Aiming Technology in the Establishment of Launch Vehicle Initial Position

作　　者：范毅[1] 何欢[1] 刘聪聪[1] 宋小艳[1] FAN Yi;HE Huan;LIU Congcong;SONG Xiaoyan(Beijing Institute of Space Launch Technology,Beijing,100076)

机构地区：[1]北京航天发射技术研究所,北京100076

出　　处：《导弹与航天运载技术（中英文）》2023年第2期71-75,共5页Missiles and Space Vehicles

摘　　要：针对大型运载火箭无人值守瞄准的需求,提出一种基于激光捷联惯组与瞄准仪相结合的无依托瞄准方法,通过激光惯组自主寻北获得北向基准,再测量出箭上惯性单元棱镜法线与返回光束的准直偏差角,将数据进行合成、解算,最终获得箭上惯组棱镜的初始方位。无依托瞄准技术具有组成简单、自动化程度高、操作流程简化、精度指标可靠的特点,可以提供不大于2’的瞄准综合误差,技术成果满足中国航天发射任务的应用需求,可供未来大型运载火箭瞄准方式参考。An unsupported aiming method was proposed based on the combination of laser gyro strap down inertial measurement unit and collimator for unattended aim of large-scale launch vehicle,obtain the north reference through the autonomous north finding of the laser inertial unit,and then measure deviation between the inertial unit prism of the launch vehicle and the line of the returning beam,The data is included and calculated,and the initial position is finally obtained.The unsupported aiming technology is simple,automatic,optimized and reliable.It has a aiming error not greater than 2′.The technology meet the requirements of space launch and can be used as a reference for the aiming method of the future large-scale launch vehicle.

关 键 词：运载火箭 无依托瞄准 激光捷联惯组 

分 类 号：V556[航空宇航科学与技术—人机与环境工程]