一种基于电离层变化率的单频载波相位平滑伪距改进方法  

An improved method of single frequency carrier phase smoothing pseudo

作　　者：徐博[1] 刘文祥[1] 廖鸣[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《中南大学学报（自然科学版）》2014年第2期464-467,共4页Journal of Central South University:Science and Technology

基　　金：新世纪优秀人才支持计划基金资助项目(NCET-04-0995)

摘　　要：为了避免单频用户可能出现的发散问题。在单频载波相位平滑伪距中,基于电离层延迟模型对电离层延迟变化进行补偿,进而推导该方法平滑后伪距精度的数学模型,使用IGS实测数据进行算例分析,验证本文方法的有效性。结果表明:本文改进的算法明显优于传统单频载波相位平滑伪距法。To avoid the divergence problem of single-frequency users, a single frequency carrier phase smoothing method was put forward, which uses pseudo ionospheric delay model to compensate the ionosphere delay variation. It derived the mathematical model smoothing the pseudorange, and the IGS measured data were used to verify the effectiveness of the method. The results show that the method proposed is greater than the traditional single frequency carder phase smoothed pseudo method.

关 键 词：卫星导航 单频载波相位平滑伪距 电离层延迟变化率 

分 类 号：TN967.1[电子电信—信号与信息处理]