角速度匹配传递对准方法在舰艇平台的适用性分析  

Analysis of angular velocity matching transfer alignment for vessel

作　　者：刘红光[1] 陈刚[1] 周超[1] 

机构地区：[1]天津航海仪器研究所,天津300131

出　　处：《中国惯性技术学报》2013年第5期565-569,共5页Journal of Chinese Inertial Technology

基　　金：海战场综合电子信息系统技术项目(40101)

摘　　要：角速度匹配传递对准可用于舰载导弹或舰载火炮等武器惯导系统的初始对准,对准精度高、速度快。但对准效果易受舰体变形角与时间延迟的影响。舰体变形可分为静态变形角及动态变形角。分析了三种不同动态变形角模型和时间延迟对角速度匹配传递对准的影响,并通过仿真进行了分析验证。仿真结果表明将动态变形角干扰作为量测噪声引入滤波器,当动态变形角为白噪声时,对角速度匹配传递对准性能没有影响。当动态变形角为有色噪声时,静态变形角估计误差会变大甚至不收敛。文中以动态变形角是二阶Markov过程为例,动态变形角经白化处理后对准效果大大提升。100 ms时间延迟会引起静态变形角2'估计误差。The angular velocity matching transfer alignment can be used to accomplish the initial alignment of the missile's and the artillery's inertial system on vessel. However the result is always disturbed by angular deformations and delay. Dynamic angular deformations are regarded as errors in general since it is much smaller than static angular deformations. In this paper, the influences of three different dynamic angular deformations models and delay are discussed, and the simulation results are analyzed and verify by using dynamic angular deformations as the noise of the filter. When dynamic angular deformations are white noises, the angular velocity matching transfer alignments work well. However, when dynamic angular deformations are color noises, the errors of static angular deformations will be higher and sometimes do not convergence during the alignment time. After whitening the second-order Markov process, the transfer alignment is much better. The simulation results show that the maximum azimuth error can attain 2' when with 100 ms delay.

关 键 词：角速度匹配 动态变形 时间延迟 对准性能 

分 类 号：U666.1[交通运输工程—船舶及航道工程]