Research Article
Range Distance Compensation Algorithm for Assisted GNSS Positioning
@INPROCEEDINGS{10.1109/ChinaCom.2011.6158185, author={Guanghua Zhang and Weixiao Meng and Jingqiu Ren and Yuwei Shi}, title={Range Distance Compensation Algorithm for Assisted GNSS Positioning}, proceedings={6th International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2012}, month={3}, keywords={agnss distance compensation positioning base station}, doi={10.1109/ChinaCom.2011.6158185} }- Guanghua Zhang
Weixiao Meng
Jingqiu Ren
Yuwei Shi
Year: 2012
Range Distance Compensation Algorithm for Assisted GNSS Positioning
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2011.6158185
Abstract
In this paper a positioning algorithm based on range distance compensation is proposed for the condition of only three visible satellites, making User Equipment (UE) get location information more effective when the quantity of satellites acquired can’t satisfy solving condition. Using the structure of Assisted Global Navigation Satellite System (AGNSS) positioning system, UE is guaranteed to acquire navigation information of the three visible satellites rapidly, and with the compensation of range distances between UE and two adjacent base stations, which is obtained from the auxiliary services, the three visible satellites’ data constructs a full-rank equation set to achieve positioning. By analyzing positioning results and accuracy, it is indicated that the confidence of this method’s positioning error, according to 3GPP request of assisted satellite navigation accuracy error within 50m, reaches 94.56%. The validity of this algorithm is demonstrated, and a novel methodology for researching in AGNSS positioning performance enhancement is proposed.