舰载导弹惯导系统姿态变化量匹配法传递对准

针对捷联惯导系统的动基座传递对准问题,采用姿态变化量匹配法,在不依赖舰船自主机动运动而仅仅依靠外界风浪随机干扰的情况下,对系泊状态下的舰载导弹捷联惯导系统传递对准进行仿真研究。仿真结果表明:在三种海况下,姿态变化量匹配法可以使3个失准角估计在短时间内均达到要求精度;随着舰船摇摆频率和幅度的增大,失准角的估计精度会进一步得到提高。研究表明姿态变化量匹配法具有对准算法简单、对准速度快、精度高等优点;利用一定强度的风浪,通过该种匹配方法能够成功的解决动基座传递对准问题。

Transfer alignment by attitude matching method in warship missile SINS

For SINS transfer alignment on moving base, an attitude change matching method was presented which only makes use of disturbances from wind and wave and requires no maneuvering of warship missile. Simulation under three wave conditions shows that the estimation for three misalignment angles can reach an expected precision in a short time. As the frequency and range of sway increase, the estimation accuracy of misalignment angles will be further improved. The study shows that attitude change matching can simplify the algorithm of transfer alignment, speed up convergence, and improve estimation accuracy. Using wind and wave of certain strength, this method can achieve SINS transfer alignment on moving base.