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北斗载波相位时间差分/SINS紧组合技术与实验研究
引用本文:汤勇刚,练军想,吴文启,胡小平.北斗载波相位时间差分/SINS紧组合技术与实验研究[J].国防科技大学学报,2007,29(2):19-23.
作者姓名:汤勇刚  练军想  吴文启  胡小平
作者单位:国防科技大学,机电工程与自动化学院,湖南,长沙,410073
基金项目:国家自然科学基金资助项目(60234030),国家部委基金资助项目(51409010203KG0152)
摘    要:说明北斗系统有源定位模式的不足,提出一种基于载波相位时间差分的北斗/SINS紧组合导航技术,即以导航卫星载波相位信号的时间差分作为Kalman滤波器的观测量,建立工作于无源方式的北斗/SINS紧组合导航系统。介绍载波相位时间差分的基本原理和数学模型,设计组合导航滤波器。通过动态和静态实验对算法的正确性和精度进行验证。实验结果表明,SINS的位置和速度误差积累受到有效的抑制,导航精度明显提高。

关 键 词:载波相位时间差分  北斗  SINS  紧组合  实验研究
文章编号:1001-2486(2007)02-0019-05
收稿时间:2006/10/15 0:00:00
修稿时间:2006年10月15

Tightly Coupled Integration Technology of RDSS Time Difference Carrier Phase/SINS and Its Experimental Research
TANG Yonggang,LIAN Junxiang,WU Wenqi and HU Xiaoping.Tightly Coupled Integration Technology of RDSS Time Difference Carrier Phase/SINS and Its Experimental Research[J].Journal of National University of Defense Technology,2007,29(2):19-23.
Authors:TANG Yonggang  LIAN Junxiang  WU Wenqi and HU Xiaoping
Abstract:The shortcomings of active positioning mode of Chinese Beidou navigation satellites system are introduced while a new technology is proposed on the basis of time difference carrier phase(TDCP) for RDSS/SINS tightly coupled integration.The TDCP measurements are used as the observation of Kalman filter to establish a tightly coupled integrated navigation system that works in passive mode.The principles and mathematic model of TDCP are described and a Kalman filter for integration is designed.Static and dynamic state tests were performed to validate the algorithm and evaluate the accuracy.The results show that the accumulation of velocity errors and position errors are attenuated remarkably.
Keywords:time difference carrier phase  RDSS  SINS  tightly coupled  experimental research
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