【摘要】 针对陆基动平台武器捷联惯导系统动基座传递对准问题,研究了传递对准的基本原理,建立了地面武器弹载子惯导系统(SINS)动基座速度匹配传递对准的误差模型,并考虑SINS的惯性器件误差。根据速度匹配传递对准原理,推导了速度匹配方式下载车主惯导系统(MINS)与SINS导航解算速度之差的量测方程。在此基础上,设计了一种传递对准卡尔曼滤波器,并针对提出的2种速度机动方案分别进行了仿真研究。仿真结果表明:速度匹配传递对准在匀速条件下5 s内即可完成SINS两个水平失准角的估计;北向加速机动可显著提高方位失准角的可观测性,使系统在15 s内达到1′以内的对准精度。更多还原

【Abstract】 Aiming at the problem of transfer alignment on moving base for the terrestrial moving-platform weapon strap-down inertial navigation system,the theory of transfer alignment is studied,the mathematical model of ground weapon missile-borne sub-INS(SINS)is established and the errors of inertial device are considered.According to the principle of velocity matching transfer alignment,the measurement equation of the velocity error between missile-borne SINS and vehicular main-INS(MINS)is deduced.Based on these,a transfer alignment Kalman filter is designed,and two different schemes of velocity maneuver are used in the simulation.The results of simulation show that two horizontal misalignment angles for missile-borne SINS can be estimated in 5 s by an uniform motion,the observability of the azimuth misalignment angle can be improved obviously with the help of a north acceleration maneuver;the estimation error of the attitude misalignment angle can be reduced to 1′in 15 s.更多还原