Detection and Correction of Cycle Slip in Triple-Frequency GNSS   Positioning

doi:10.1109/ACCESS.2017.2720588

CORC > 北京大学 > 信息科学技术学院

	Detection and Correction of Cycle Slip in Triple-Frequency GNSS Positioning
	Gu, Xiaoying ; Zhu, Bocheng
刊名	IEEE ACCESS
	2017
关键词	Cycle slip triple-frequency GNSS high precision positioning precise point positioning GPS GPS
DOI	10.1109/ACCESS.2017.2720588
英文摘要	High precision positioning requires correct carrier phase observation. However, signal block will cause the discontinuity of the carrier phase named as cycle slip, which will severely depress the positioning efficiency and accuracy. Triple-frequency global navigation satellite system measurements bring benefit to the detection and repair of cycle slip. We propose a modified method to detect cycle slip based on combinations of triple-frequency signals. Cycle slips on the three combinations with longer wavelengths and lower noises are determined by the geometry-free model. Then, original cycle slips on three carriers are determined uniquely by the linear equations. To deal with the insensitive cycle slips, an alternative combination is presented as a supplementary. However, the residual of the first-order time differenced ionospheric error cannot be ignored in this step or will be mistaken as cycle slip if not eliminated. To remove this interference, the residual is compensated by pre-estimations calculated by previous wide-lane combination with no cycle slips have been detected. In the end, real triple-frequency GPS data provided by IGS is processed by this method. The results show that the proposed method can detect all cycle slips in real time even under high ionospheric activity.; State Administration of Science, Technology and Industry for National Defense [JCKY2016110B004]; SCI(E); ARTICLE; 12584-12595; 5
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/475874]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Gu, Xiaoying,Zhu, Bocheng. Detection and Correction of Cycle Slip in Triple-Frequency GNSS Positioning[J]. IEEE ACCESS,2017.
APA	Gu, Xiaoying,&Zhu, Bocheng.(2017).Detection and Correction of Cycle Slip in Triple-Frequency GNSS Positioning.IEEE ACCESS.
MLA	Gu, Xiaoying,et al."Detection and Correction of Cycle Slip in Triple-Frequency GNSS Positioning".IEEE ACCESS (2017).