摘要
针对单站双频GPS载波相位的特点,提出了一种利用双频载波相邻相位求差的方法来探测和修复周跳;相位求差法在消除电离层和对流层影响的基础上能够准确的探测出发生周跳的历元,并利用伪距差分约束确定周跳值;本文介绍该方法的数学模型,给出了具体实施步骤,最后算例证明了该法的可靠性和有效性。
A method of dual frequency differenced carrier-phase for detecting and repairing cycle-slip is proposed with carrier phase in dual GPS receiver; On the basis of Eliminating the affect of Ionosphere and Troposphere, the method of differenced carrier-phase not only exactly probe the epoch having cycle-slip, but also can determine cycle-slip value by pseudorange difference; The mathematical model of this method is introduced in this paper, and then the concrete implementation steps are presented. The reliability and validity of the method are testified by an example.
出处
《科技信息》
2011年第21期I0032-I0033,I0420,共3页
Science & Technology Information
关键词
GPS
周跳探测与修复
相位求差
载波相位
GPS
Cycle-slip detection and correction
Phase difference
Carrier phase
