[1] Yu Guorong, Sheng Renjun,. Cycle slip detection approachbased on time-relative positioning theory [J]. Journal of Southeast University (English Edition), 2005, 21 (3): 363-368. [doi:10.3969/j.issn.1003-7985.2005.03.023]

Copy

Cycle slip detection approachbased on time-relative positioning theory()

Share：

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

21

Issue:

2005 3

Page:

363-368

Research Field:

Surveying and Mapping and Navigation

Publishing date:

2005-09-30

Info

Title:

Cycle slip detection approachbased on time-relative positioning theory

Author(s):

Yu Guorong;  Sheng Renjun

College of Transportation, Southeast University, Nanjing 210096, China

Keywords:

global positioning system(GPS);  cycle slips;  time-relative positioning;  satellite-receiver geometry

PACS:

P228.4

DOI:

10.3969/j.issn.1003-7985.2005.03.023

Abstract:

An efficient cycle slip detection method is proposed for high precision positioning and navigation results with global positioning system(GPS), which is based on the assumption of a high sampling interval, measurement errors are so small that they can be ignored in the temporal single difference observables. And ambiguities are ordinarily equal to zero, but could be the number of cycles that have “slipped” if loss-of-lock has occurred.Therefore, cycle slips are estimated as parameters of time-relative positioning observation equations.Because the temporal single difference observables are taken at different epochs and different stations with a single GPS receiver, if time-relative positioning observation equations are linearized as that of conventional relative positioning, the design matrix will be rank defective.To obtain a stable linearization scheme, time-relative positioning observation equations are further analyzed, and the concept of virtual measurement is applied.A sample of data collected on a vehicle test shows that a cycle slip detection approach based on time-relative positioning theory can detect slips at the value of one cycle.The results also indicate if two satellites are so near to each other that they have the same equivalent to satellite-receiver geometry, cycle slip detection will be difficult and may get wrong results.Cycle slips of different satellites also affect detection by satellite-receiver geometry.

References:

[1] Lichtenegger H, Hofmann-Wellenhof B.GPS-data preprocessing for cycle-slip detection [A].In:Bock Y, Leppard N, eds.International Association of Geodesy Symposia on Global Positioning System:An Overview [C].Edinburgh, Scotland, 1989.57-68.
[2] Bisnath S B.Efficient, automated cycle-slip correction of dual-frequency kinematic GPS data [A].In:Proceedings of ION GPS 2000 [C].Salt Lake City, Utah, 2000.145-154.
[3] Bastos L, Landau H.Fixing cycle slips in dual-frequency kinematic GPS-applications using Kalman filtering [J].Manuscripta Geodaetica, 1988, 13(4):249-256.
[4] Blewitt G.An automatic editing algorithm for GPS data [J].Geophysical Research Letters, 1990, 17(3):199-202.
[5] Gao Y, Li Z.Cycle slip detection and ambiguity resolution algorithms for dual-frequency GPS data processing [J].Marine Geodesy, 1999, 22(4):169-181.
[6] Collin F, Warnant R.Application of the wavelet transform for GPS cycle slip correction and comparison with Kalman filter [J].Manuscripta Geodaetica, 1995, 20(3):161-172.
[7] Michaud S, Santeree R.Time-relative positioning with a single civil GPS receiver [J].GPS Solutions, 2001, 5(2):71-77.
[8] Kim D, Langley R B.Estimation of the stochastic model for long-baseline kinematic GPS applications [A].In:Proceedings of the Institute of Navigation 2001 National Technical Meeting [C].Long Beach, CA, USA, 2001.586-595.

Memo

Memo:

Biography: Yu Guorong(1971—), male, doctor, ygr.fish@163.com.

Common functions