捷联惯导系统传递对准中的时间补偿算法

A Time Delay Compensation Algorithm for Transfer Alignment in Strapdown Inertial Navigation System

摘要: 为了减小或消除时间延迟的影响, 提高系统动基座传递对准精度, 提出了一种捷联惯导系统传递对准过程中对主、子惯导间信息传输时间延迟的补偿算法。该算法利用子惯导导航解算过程中的相关数据和延迟时间, 对传递信息中因时间延迟产生的误差进行补偿修正, 并用修正后的主惯导信息进行动基座传递对准。车载试验结果证明, 该方法可有效提高系统传递对准精度, 减小传递对准时间, 补偿算法有效可行。
- 捷联惯导系统 /
- 传递对准 /
- 时间延迟 /
- 补偿算法
Abstract: To reduce the influence of time delay, and enhance the precision of transfer alignment for movable base, a compensation algorithm for information transmission time delay between master and slave strapdown inertial navigation systems (SINS) in transfer alignment is proposed. The algorithm uses the delay-time and the relevant data in solving process of the slave inertial navigation system to compensate the errors caused by time delay in information transmission, and performs transfer alignment of the movable base according to the corrected information of master inertial navigation system. Test results show that the proposed algorithm can improve the transfer alignment accuracy and reduce transfer alignment time.
- strapdown inertial navigation system(SINS) /
- transfer alignment /
- time delay /
- compensation algorithm

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