一种不下箱状态的弹上惯组一体化标定方法  

An Integrated Calibration Method of the Inertial Group on theMissile without Opening Box

作　　者：刘宇[1] 申亮亮[2] 王新龙[1] 蔡远文 Liu Yu;Shen Liangliang;Wang Xinlong;Cai Yuanwen(School of Astronautics,Beihang University,Beijing 100083,China;Beijing Institute of Control&Electronic Technology,Beijing 100038,China;Department of Graduate School,Space Engineering University,Beijing 101416,China)

机构地区：[1]北京航空航天大学宇航学院,北京100083 [2]北京控制与电子技术研究所,北京100038 [3]航天工程大学研究生院,北京101416

出　　处：《航空兵器》2021年第2期86-92,共7页Aero Weaponry

基　　金：国家自然科学基金项目(61673040);航空科学基金项目(20170151002);试验技术项目(1700050405);天地一体化信息技术国家重点实验室基金项目(2015-SGIIT-KFJJ-DH-01);重点基础研究项目(2020-JCJQ-ZD-136-12)。

摘　　要：为缩短标定时间、简化标定流程,将导弹、发射箱随弹上惯组共同参与标定,从而在不下箱状态下完成对弹上惯组的标定。然而由于导弹体积、质量较大,使得转台转动受限。基于此,提出了一种不下箱状态的弹上惯组一体化标定方法。根据转台转动的限制条件,并考虑加速度计、光纤陀螺标定方法的特点,设计了一种包含6个静止位置的转动路径。通过转台连续转动,实现对加速度计、光纤陀螺的一起标定。考虑到转台转动时间较短,光纤陀螺常值漂移累积的误差量较小,难以进行估计。因此,采用双位置测漂法对光纤陀螺常值漂移进行标定。仿真结果表明,本文的标定方法能够取得与传统标定方法相近的标定效果,具有较高的标定精度;利用标定结果对常值漂移进行补偿后,重新对光纤陀螺进行标定,标定精度得到提升。In order to shorten the calibration time and simplify the calibration process,the missile and launch box are jointly involved in the calibration,so as to complete the calibration of the inertial group on the missile without opening box.However,due to the large volume and mass of the missile,the rotation of the turntable is limited.Based on this,an integrated calibration method of the inertial group on missile without opening box is proposed.According to the limitation of turntable rotation and considering the characteristics of accelerometer and fiber optic gyroscope(FOG)calibration method,a rotation path including six static positions is designed.Through the continuous rotation of the turntable,the accelerometer and FOG can be calibrated together.Due to the short rotation time of turntable,the accumulated error of FOG constant drift is small,so it is difficult to estimate.Therefore,the double position drift method is used to calibrate the constant drift.The simulation results show that the proposed calibration method can achieve the same calibration effect as the traditional calibration method,and has high calibration accuracy.After compensating the constant drift with the calibration results,the calibration accuracy is improved.

关 键 词：不下箱状态 转台转动受限 弹上惯组 转动路径设计 一体化标定 导弹 

分 类 号：TJ765.4[兵器科学与技术—武器系统与运用工程] V249[航空宇航科学与技术—飞行器设计]