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Sensors 2015, 15(11), 28717-28731; doi:10.3390/s151128717

First Results of Field Absolute Calibration of the GPS Receiver Antenna at Wuhan University

1
GNSS Research Center, Wuhan University, Luoyu Road No. 129, Wuhan 430079, China
2
School of Geodesy and Geomatics, Wuhan University, Luoyu Road No. 129, Wuhan 430079, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Assefa Melesse
Received: 23 June 2015 / Revised: 5 October 2015 / Accepted: 7 November 2015 / Published: 13 November 2015
(This article belongs to the Section Remote Sensors)
View Full-Text   |   Download PDF [2036 KB, uploaded 13 November 2015]   |  

Abstract

GNSS receiver antenna phase center variations (PCVs), which arise from the non-spherical phase response of GNSS signals have to be well corrected for high-precision GNSS applications. Without using a precise antenna phase center correction (PCC) model, the estimated position of a station monument will lead to a bias of up to several centimeters. The Chinese large-scale research project “Crustal Movement Observation Network of China” (CMONOC), which requires high-precision positions in a comprehensive GPS observational network motived establishment of a set of absolute field calibrations of the GPS receiver antenna located at Wuhan University. In this paper the calibration facilities are firstly introduced and then the multipath elimination and PCV estimation strategies currently used are elaborated. The validation of estimated PCV values of test antenna are finally conducted, compared with the International GNSS Service (IGS) type values. Examples of TRM57971.00 NONE antenna calibrations from our calibration facility demonstrate that the derived PCVs and IGS type mean values agree at the 1 mm level. View Full-Text
Keywords: GPS; IGS; receiver antenna; field absolute calibration; absolute antenna phase center corrections GPS; IGS; receiver antenna; field absolute calibration; absolute antenna phase center corrections
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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

Hu, Z.; Zhao, Q.; Chen, G.; Wang, G.; Dai, Z.; Li, T. First Results of Field Absolute Calibration of the GPS Receiver Antenna at Wuhan University. Sensors 2015, 15, 28717-28731.

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