捷联惯导单轴转停调制中角变速运动影响研究  

Effect of angle variable motion on rotation strapdown inertial navigation systems

作　　者：孙枫[1] 王秋滢 齐昭 

机构地区：[1]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001

出　　处：《华中科技大学学报（自然科学版）》2013年第4期31-35,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：武器装备预研基金资助项目(9140A09040211CB0102);国家自然科学基金资助项目(51179039)

摘　　要：针对调制型捷联惯导系统中旋转机构的角变速运动,建立了角变速运动模型,推导了该运动过程中惯性器件常值误差和刻度因数误差的形式,在此基础上设计了抵消该误差的旋转运动方式,给出针对角变速运动过程的旋转方案设计原则.利用仿真试验比较了两种转停方案系统定位误差,试验结果验证了改进旋转方案的正确性与适用性.利用自研光纤陀螺系统工作在不同旋转方案下进行验证性试验,结果表明该方法能够有效地抑制旋转过程中角变速运动的影响,提高系统的导航精度.The angle variable motion of rotating mechanism in rotation strapdown inertial navigation system （SINS） was studied, and angle variable motion modal was established. Then, the main error form of constant error and scale factor error of inertial measurement unit （IMU） was derived. The motion mode of error compensation was designed on the basis of main error form, and the design prin- ciple of rotation scheme was given. At last, the design principle correctness was proved by the simula- tion test with two kinds of rotation schemes. The experiment is operated by the FOG （fiber optic gyro） SINS which is made by our lab, and the result shows that navigation error is inhibited by the new rotation method.

关 键 词：调制型捷联惯导系统 旋转机构 角变速运动 运动模型 惯性器件误差 抵消方法 

分 类 号：V241[航空宇航科学与技术—飞行器设计]