一种双轴稳定光纤惯导系统  

A Biaxial Stabilized Optical Fiber Inertial Navigation System

作　　者：陈志豪 乔相伟 王建青 CHEN Zhihao;QIAO Xiangwei;WANG Jianqing(Xi’an Aerospace Precision Electromechanical Institute,Xi’an 710100)

机构地区：[1]西安航天精密机电研究所,西安710100

出　　处：《导航与控制》2024年第2期51-61,共11页Navigation and Control

摘　　要：随着光纤陀螺的快速发展,光纤陀螺捷联惯导系统被广泛应用于各类武器系统。针对未来装备发展对惯导小型化、轻质化、低成本、高动态环境适应性等要求,提出了一种双轴稳定光纤惯导系统。该惯导系统吸收了平台式、捷联式、旋转式惯导系统的各自优点,将惯性平台隔离载体角运动、捷联导航解算与旋转调制抑制误差效应三者集于一体,提升纯惯性动态导航精度的同时,可做到相同惯性仪表条件下体积、质量更小。为验证该惯导系统的可行性,利用现有光纤陀螺惯性平台,通过“台体轴及内框轴双轴稳定+外框架单轴电锁”方式改造成双轴稳定光纤惯导,并进行了随机振动导航试验考核。试验结果表明,该惯导系统具备较高的动态导航精度。With the rapid development of fiber optic gyroscope(FOG),the FOG strapdown navigation system is widely used in various weapon systems.Aiming to the future equipment development,a biaxial stabilized optical fiber inertial navigation system(BSOF-INS)is proposed to meet the requirements of miniaturization,light-weight,low-cost,and high dynamic environment adaptability.With the function of carrier angular motion isolating,the strapdown navigation resolving,and the rotary modulation error inhibiting being integrated,the advantages of the platform,strapdown and rotary inertial system are absorbed in the BSOF-INS.Under the same inertial instrument conditions,the accuracy of pure inertial dynamic navigation is improved while smaller volume and mass being achieved.To verify the feasibility of the BSOF-INS,an available fiber gyroscope inertial stability platform is transformed into the BSOF-INS through the method of“body and inner frame axis stabling+external frame electric locking”.Finally,the random vibration navigation test is conducted,and the results show that the BSOF-INS has high dynamic navigation accuracy.

关 键 词：双轴稳定光纤惯导系统 捷联惯导系统 惯性平台系统 

分 类 号：TH824[机械工程—仪器科学与技术]