Mixed Application of Single and Dual Frequency Receivers in Single-Frequency Precise Point Positioning

被引：0

作者：

Zou J. ^{[1
]}

Wang J. ^{[1
]}

机构：

[1] College of Surveying and Geo-Informatics, Tongji University, Shanghai

来源：

Tongji Daxue Xuebao/Journal of Tongji University | 2021年 / 49卷 / 05期

关键词：

Ionospheric delay; Precise point positioning (PPP); Single-frequency observation;

D O I：

10.11908/j.issn.0253-374x.20187

中图分类号：

学科分类号：

摘要：

Precise point positioning (PPP) is not affected by the local observation and infrastructure which is beneficial for deformation monitoring. Considering the influence of the ionospheric delay on single-frequency point positioning, the method of the mixed application of the single and dual frequency observations is proposed. However, the single-frequency precise point positioning is affected by the fractional bias of phase observation. The method for introducing the dual-differenced ambiguity into single-frequency precise point positioning is discussed. The data are processed using the method proposed. The results show that the estimated ionospheric delay is higher than 1 cm which can meet the requirement of single-frequency point positioning. It is noticed that the convergence time can be shortened for an average improvement of 7 minutes. The improvements for the single-frequency point positioning in the directions of the North, East, and UP can reach 0.23, 0.14, and 0.21 cm, respectively. © 2021, Editorial Department of Journal of Tongji University. All right reserved.

引用

页码：731 / 736

页数：5

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