基于正逆向导航解算的捷联罗经动基座对准研究  

Research on Strapdown Compass Moving Base Alignment Based on Forward and Reverse Navigation Solution

作　　者：于飞飞 王振桓 曾庆双[1] 陈希军[1] YU Fei-fei;WANG Zhen-huan;ZENG Qing-shuang;CHEN Xi-jun(School of Astronautics, Harbin Institute of Technology, Haerbin 150001, China)

机构地区：[1]哈尔滨工业大学航天学院,哈尔滨150001

出　　处：《导航定位与授时》2020年第3期38-45,共8页Navigation Positioning and Timing

基　　金：国家自然科学基金(61703123)。

摘　　要：针对基于正逆向导航解算的捷联罗经动基座对准实时性弱的问题,基于姿态补偿对准方法,采用一次性姿态补偿和接续姿态更新两种补偿方法设计了一种新的算法,并进行了仿真试验。通过仿真试验验证,全循环法和半循环法均能在同等参数和时间条件下提高对准精度,对比常规捷联罗经对准方法,缩短了对准时间。针对粗对准误差过大导致精对准时间延长的问题,提出了正逆向二级变参数配置方法,减少了对准时间。Aiming at the problem of weak real-time alignment of strapdown compass moving base based on forward and reverse navigation solution,a new alignment method based on attitude compensation alignment method is proposed,by using two compensation methods,one-off attitude compensation and continuous attitude updating,and simulation experiments are carried out.Verified by simulation experiment,the full cycle and the half cycle methods can improve the alignment accuracy under conditions of same parameters and time.Comparing with the conventional strapdown compass alignment method,the alignment time is shortened.Aiming at the problem that the coarse alignment error is too large to prolong the fine alignment time,a forward and reverse two-stage parameter configuration method is proposed and the alignment time is shortened.

关 键 词：初始对准 罗经效应 逆向导航 动基座 

分 类 号：V249.3[航空宇航科学与技术—飞行器设计]