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GPS/INS组合导航系统时间同步方法研究 被引量:10

Time Synchronization Method of GPS/INS Integrated Navigation System
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摘要 在设计和实现GPS/INS组合导航系统时,各子系统的时间同步是最关键的问题。首先对GPS/INS组合导航系统的时间同步问题作基本描述,然后在简要分析基于GPS接收机的1 pps脉冲信号同步采样技术的基础上,提出另外一种基于GPS和INS的1 pps脉冲信号的时间比对同步方法,这种方法能较好地解决GPS接收机由于失锁引起的1 pps信号抖动,将晶体振荡器的短期稳定度和GPS时间的长期稳定度结合起来,使各子系统数据在时间上能准确同步。
出处 《测绘通报》 CSCD 北大核心 2007年第4期27-29,58,共4页 Bulletin of Surveying and Mapping
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