Research of Ambiguity Fast Resolution in GPS Orientation Determination

DOI

10.2991/iccasm.2012.347How to use a DOI?

Keywords

Integer ambiguity, Decorrelation, Searching space, Fast orientation, Baseline length

Abstract

Real-time GNSS orientation determination is valuable in many fields. In order to achieve high accuracy orientation with GNSS, the difference carrierphase observation must be employed. The carrier-phase measurements are affected by integer ambiguities, which must be resolved in order to take advantage of the high carrier-phase measurement precision. The information of the baseline length is exploited to reduce the correlation of ambiguities. So the size of integer ambiguities search space can be reduced. In order to make float ambiguity uncorrelated completely, float transformation matrix is constructed by Cholesky decomposition, so the speed of integer ambiguities searching can be improved. The experiment shows the method can improve the speed of integer ambiguities searching.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Liang Chen
AU  - Jie Wu
PY  - 2012/08
DA  - 2012/08
TI  - Research of Ambiguity Fast Resolution in GPS Orientation Determination
BT  - Proceedings of the 2012 International Conference on Computer Application and System Modeling (ICCASM 2012)
PB  - Atlantis Press
SP  - 1356
EP  - 1359
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccasm.2012.347
DO  - 10.2991/iccasm.2012.347
ID  - Chen2012/08
ER  -