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Sensors 2016, 16(8), 1261; doi:10.3390/s16081261

Real-Time Single Frequency Precise Point Positioning Using SBAS Corrections

College of Automation, Harbin Engineering University, Harbin 150001, China
Acdemy of Opto-electroncis, Chinse Academy of Sciences, Beijing 100094, China
Authors to whom correspondence should be addressed.
Received: 10 June 2016 / Revised: 19 July 2016 / Accepted: 5 August 2016 / Published: 10 August 2016
(This article belongs to the Section Remote Sensors)
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Real-time single frequency precise point positioning (PPP) is a promising technique for high-precision navigation with sub-meter or even centimeter-level accuracy because of its convenience and low cost. The navigation performance of single frequency PPP heavily depends on the real-time availability and quality of correction products for satellite orbits and satellite clocks. Satellite-based augmentation system (SBAS) provides the correction products in real-time, but they are intended to be used for wide area differential positioning at 1 meter level precision. By imposing the constraints for ionosphere error, we have developed a real-time single frequency PPP method by sufficiently utilizing SBAS correction products. The proposed PPP method are tested with static and kinematic data, respectively. The static experimental results show that the position accuracy of the proposed PPP method can reach decimeter level, and achieve an improvement of at least 30% when compared with the traditional SBAS method. The positioning convergence of the proposed PPP method can be achieved in 636 epochs at most in static mode. In the kinematic experiment, the position accuracy of the proposed PPP method can be improved by at least 20 cm relative to the SBAS method. Furthermore, it has revealed that the proposed PPP method can achieve decimeter level convergence within 500 s in the kinematic mode. View Full-Text
Keywords: precise point positioning; SBAS; real-time; single frequency; convergence precise point positioning; SBAS; real-time; single frequency; convergence

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Li, L.; Jia, C.; Zhao, L.; Cheng, J.; Liu, J.; Ding, J. Real-Time Single Frequency Precise Point Positioning Using SBAS Corrections. Sensors 2016, 16, 1261.

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