The transfer alignment of SINS/GPS navigation system of a high-speed marine missile was investigated. With the help of the big acceleration of a high-speed missile, the transfer alignment was changed into a three-time...The transfer alignment of SINS/GPS navigation system of a high-speed marine missile was investigated. With the help of the big acceleration of a high-speed missile, the transfer alignment was changed into a three-time alignment. The azimuth alignment was coarsely finished in 10s in the first time alignment, the horizontal alignment was accurately and rapidly finished in the second time alignment, and the azimuth alignment was accurately finished in the third time alignment. Because the second time alignment and the third time alignment were finished by GPS after the missile was launched, the horizontal alignment and the second azimuth alignment got rid of the influence of the warship body flexibility deforming. The precision and rapidity of the horizontal alignment were prominently increased due to the vertical launch of the marine missile with the big acceleration. Simulation verifies the effectiveness of the proposed alignment method.展开更多
SINS GPS组合导航系统已经应用于许多不同的领域。介绍一种已经进入试验阶段的低成本激光陀螺SINS GPS组合导航系统。根据系统的硬件结构,设计实现了与实际系统相匹配的组合导航滤波器,根据车载试验的结果,着重分析了系统车载试验中不...SINS GPS组合导航系统已经应用于许多不同的领域。介绍一种已经进入试验阶段的低成本激光陀螺SINS GPS组合导航系统。根据系统的硬件结构,设计实现了与实际系统相匹配的组合导航滤波器,根据车载试验的结果,着重分析了系统车载试验中不同导航模式对系统性能的影响,最后给出了一些有益的结论。展开更多
The outlier detection and accommodation of integration navigation of strapdown inertial navigation systems and global position system（SINS/GPS） were studied.Based on analyzing the innovation orthogonal property in K...The outlier detection and accommodation of integration navigation of strapdown inertial navigation systems and global position system（SINS/GPS） were studied.Based on analyzing the innovation orthogonal property in Kalman filter,an outlier adaptive detection approach was first presented,which included the determination of evaluation function and threshold and the logic decision of outlier occurrence.To effectively attenuate the influence on estimation accuracy,a modified Kalman filter algorithm was proposed by accommodation of the dynamic data with outlier.Results of data processing from vehicle-test SINS/GPS integration navigation show the effectiveness of the proposed method.展开更多
文摘The transfer alignment of SINS/GPS navigation system of a high-speed marine missile was investigated. With the help of the big acceleration of a high-speed missile, the transfer alignment was changed into a three-time alignment. The azimuth alignment was coarsely finished in 10s in the first time alignment, the horizontal alignment was accurately and rapidly finished in the second time alignment, and the azimuth alignment was accurately finished in the third time alignment. Because the second time alignment and the third time alignment were finished by GPS after the missile was launched, the horizontal alignment and the second azimuth alignment got rid of the influence of the warship body flexibility deforming. The precision and rapidity of the horizontal alignment were prominently increased due to the vertical launch of the marine missile with the big acceleration. Simulation verifies the effectiveness of the proposed alignment method.
基金Sponsored by the National Natural Science Foundation of China(60774071)the National High Technology Research and Development Program of China("863"Program)(2008AA121302)the National Basic Research Program of China("973"Program)(2009CB724000)
文摘The outlier detection and accommodation of integration navigation of strapdown inertial navigation systems and global position system（SINS/GPS） were studied.Based on analyzing the innovation orthogonal property in Kalman filter,an outlier adaptive detection approach was first presented,which included the determination of evaluation function and threshold and the logic decision of outlier occurrence.To effectively attenuate the influence on estimation accuracy,a modified Kalman filter algorithm was proposed by accommodation of the dynamic data with outlier.Results of data processing from vehicle-test SINS/GPS integration navigation show the effectiveness of the proposed method.
