传感技术学报2012，Vol.25Issue(4)：496-500,5.DOI:10.3969/j.issn.1004-1699.2012.04.016
捷联惯导系统任意失准角双模型快速传递对准
Dual Model Rapid Transfer Alignment for SINS under Arbitrary Misalignment
摘要
Abstract
Transfer alignment is the first choice of initial alignment of air-bome or ship-borne weapon's inertial navigation system,the classical linear error model can't reflect the error propagation of the transfer alignment process under bad environment accurately, so lots of nonlinear error models have been presented by the researchers all over the world,along with the problem about huge computational burden. Aim at the problem proposed above,a dual model rapid transfer alignment method is presented, the velocity plus quaternion matching based nonlinear rapid transfer alignment process along with Unsented Kalman filter is utilized first when the misalignment is large,after the estimation of the misalignment reaches a certain precision, the calibration is done, and then switch to the conventional velocity plus attitude matching based linear rapid transfer alignment process along with classical Kalman filter. Simulation results show that the method presented can obtain higher accuracy than both the linear and nonlinear error model based transfer alignment,and it has to beat less computational burden than the nonlinear error model based rapid transfer alignment.关键词
捷联惯导系统/初始对准/传递对准/非线性/卡尔曼滤波/Unscented卡尔曼滤波Key words
strapdown inertial navigation system/ initial alignment/ transfer alignment/ nonlinear/ Kalman filter/ Unscented Kalman filter分类
交通工程引用本文复制引用
戴洪德,卢建华,吴光彬,姚新华..捷联惯导系统任意失准角双模型快速传递对准[J].传感技术学报,2012,25(4):496-500,5.基金项目
十一五国防预研项目(51309060401) （51309060401）
