A Study on the Alignment of Platform INS Based on the Rotation Around Azimuth Axis

摘要：

　　Platform INS is a type of high-precision navigation equipment and widely used in launch vehicles, missiles, aircrafts, ships and other types of carrier.The traditional gyrocompass alignment method used for the platform INS on stationary base is affected by the gyros random drift, installation error and the scale factor errors and gimbal locking errors.This paper presents a new gyrocompass alignment method based on the continuous rotation around the platforms azimuth axis.Through locking the horizontal gimbal control loop and rotating around the azimuth axis, the alignment is carried out by estimating the misalignments based on horizontal gyros torque currents information.Simulation results show that the initial alignment can be quickly carried out with high precision and the proposed method has more advantages than traditional gyrocompass alignment method.

关键词： Platform INS Initial alignment Stationary base Gyro torque current

作者: Chan Li Yuan Cao Shifeng Zhang

作者单位: College of Aerospace Science and Engineering, National University of Defense Technology,Changsha 410073, China

会议类型: 国际会议

会议名称: The 27th Conference of Spacecraft TT&C Technology in China(第27届中国飞行器测控学术会议)

会议地点: 广州

会议语种:英文

页码: 59-69

在线出版日期: 2014-11-09（万方平台首次上网日期，不代表论文的发表时间）