TY - GEN
T1 - The analysis on geometry dilution of precision for multi-GNSS
AU - Yang, Lan
AU - Wang, Zulin
AU - Zhou, Lina
AU - Zhu, Yuehua
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/12/15
Y1 - 2014/12/15
N2 - The geometry dilution of precision (GDOP) has been widely used as an accuracy metric for GNSS. The conventional GDOP, mainly investigated for single GNSS, is not valid for multi-GNSS because of the system time offset among GNSSs. This paper performs a GDOP analysis for two scenarios where the system time offset is resolved respectively at system level and at user level in presence of any number of GNSSs. The closed-form solutions for the minimum of GDOPs in both scenarios are derived firstly as a function of the number of the satellites in different GNSSs. The minimum of GDOP can be a reference to assess the quality of the employed satellite. Then we propose a new DOP parameter, position and time dilution of precision (PTDOP), for mathematical comparison between the two system time offset determination methods. The comparison of the analytical and simulations between the both scenarios shows that the system level method slightly outperforms the user level method for the receiver.
AB - The geometry dilution of precision (GDOP) has been widely used as an accuracy metric for GNSS. The conventional GDOP, mainly investigated for single GNSS, is not valid for multi-GNSS because of the system time offset among GNSSs. This paper performs a GDOP analysis for two scenarios where the system time offset is resolved respectively at system level and at user level in presence of any number of GNSSs. The closed-form solutions for the minimum of GDOPs in both scenarios are derived firstly as a function of the number of the satellites in different GNSSs. The minimum of GDOP can be a reference to assess the quality of the employed satellite. Then we propose a new DOP parameter, position and time dilution of precision (PTDOP), for mathematical comparison between the two system time offset determination methods. The comparison of the analytical and simulations between the both scenarios shows that the system level method slightly outperforms the user level method for the receiver.
KW - Geometry dilution of precision
KW - global navigation satellite system
KW - system time offset
UR - https://www.scopus.com/pages/publications/84922648333
U2 - 10.1109/ICSPCC.2014.6986299
DO - 10.1109/ICSPCC.2014.6986299
M3 - 会议稿件
AN - SCOPUS:84922648333
T3 - 2014 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2014
SP - 762
EP - 766
BT - 2014 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2014
Y2 - 5 August 2014 through 8 August 2014
ER -