CAJ | 학술논문

为缩短对准时间,提出了一种基于非线性模型与线性模型的交互多模型对准方法.给出了捷联惯导的非线性和线性误差模型,设计了基于线性模型和非线性模型的交互多模型对准算法.数字仿真结果和转台摇摆试验验证了算法的有效性.结果表明采用交互模型可使对准收敛时间加快,最终对准精度亦得到了一定程度改善.
위축단대준시간,제출료일충기우비선성모형여선성모형적교호다모형대준방법.급출료첩련관도적비선성화선성오차모형,설계료기우선성모형화비선성모형적교호다모형대준산법.수자방진결과화전태요파시험험증료산법적유효성.결과표명채용교호모형가사대준수렴시간가쾌,최종대준정도역득도료일정정도개선.
A nonlinear model and linear model based interacting multiple model (IMM) alignment method is proposed to shorten the alignment time. The nonlinear model and linear model of strapdown inertial navigation are given and the interacting multiple model is designed. The alignment algorithm is validated by the simulation and turntable test. Results show that the interacting multiple model alignment method can accelerate filtering convergency and improve the final alignment accuracy.