摘要
载波相位测量是北斗卫星定向系统的核心。要实现高精度,必须保证载波相位无周跳现象。针对载波相位变化率的精度易受载体速度变化影响,电离层残差法可修复小范围周跳的情况,提出一种联合载波相位变化率和冗余双差观测量的方法,并对实测数据进行算法验证。结果表明该方法可以有效修复周跳,在载体动态情况下取得良好效果。
Carrier phase measurement is the core of Beidou satellite orientation system.To get high precision,the carrier phase can t have cycle slips.The precision of carrier phase change rate method is easily affected by the change of carrier s rate,and the ionosphere residual method can only repair small range cycle slips.A method of combining carrier phase change rate and redundant double difference algorithm for detection and recovery of cycle slips is proposed.Experimental result shows that this algorithm is efficient,especially in dynamic conditions.
作者
董惠
侯岩柯
王纯
DONG Hui;HOU Yanke;WANG Chun(School of Information and Control Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China)
出处
《测绘工程》
CSCD
2019年第1期32-35,共4页
Engineering of Surveying and Mapping
基金
陕西省自然科学基金资助项目(2013JQ8003)
关键词
卫星定向
载波相位
周跳
载波相位变化率
冗余双差观测量
satellite orientation
carrier phase
cycle slip
carrier phase change rate
redundant double difference
