CAJ | 학술논문

针对目前常用的双轴旋转方案对惯性器件的标度因数误差和安装误差的调制不完全的缺点，提出了一种改进的双轴旋转调制方案。该方法通过逐步分析系统的误差传播特性，设计每一转动次序的转轴和转动方向，使前后次序残余的器件误差互相抵消，从而提高了双轴旋转调制的效果，满足了捷联惯导系统自主导航精度的要求。对实验室常用的双轴旋转调制方案和改进的方案进行了对比研究，仿真和试验结果表明，改进的双轴旋转方案的速度误差和定位误差曲线的周期振荡幅值较原方案显著减小，而且误差曲线整体发散的速度也非常缓慢。
침대목전상용적쌍축선전방안대관성기건적표도인수오차화안장오차적조제불완전적결점，제출료일충개진적쌍축선전조제방안。해방법통과축보분석계통적오차전파특성，설계매일전동차서적전축화전동방향，사전후차서잔여적기건오차호상저소，종이제고료쌍축선전조제적효과，만족료첩련관도계통자주도항정도적요구。대실험실상용적쌍축선전조제방안화개진적방안진행료대비연구，방진화시험결과표명，개진적쌍축선전방안적속도오차화정위오차곡선적주기진탕폭치교원방안현저감소，이차오차곡선정체발산적속도야비상완만。
In order to further counteract the incomplete modulation to inertial sensors’ scale errors and installation errors in the commonly used dual-axis rotating scheme at present, an improved dual-axis rotating scheme was pro-posed.By analyzing the propagation characteristics of system errors stage by stage, the rotation axis and direction of each rotation were designed respectively so as to counteract the residual errors of device in sequence, thereby im-proving the modulating effects of dual-axis rotating and meeting the self-navigation accuracy requirements of SINS ( strapdown inertial navigation system) .The proposed scheme was compared with the commonly used scheme in la-boratory, and simulation and experiment results showed that the amplitude of the improved scheme’ s velocity errors and position errors curve is remarkably smaller than that of the commonly used scheme, and the errors’ overall di-vergence speed is very slow.