TY - GEN
T1 - A modified satellite selection algorithm based on satellite contribution for GDOP in GNSS
AU - Li, Guangyao
AU - Xu, Chengdong
AU - Zhang, Pengfei
AU - Hu, Chunsheng
PY - 2012
Y1 - 2012
N2 - In Global Navigation Satellite System (GNSS), the visible satellites combination which has a better geometry distribution can provide better positioning accuracy. Geometry Dilution of Precision (GDOP) can be used to measure the positioning accuracy. The direct satellite selection algorithm (DSSA) is a time-consuming algorithm because it would calculate all GDOP values associated with different combinations to choose the smallest one. In this paper, based on each satellite's contribution for GDOP, a modified satellite selection algorithm (MSSA) is proposed which is dependent on a fixed contribution value. Through the theory analysis, the computational complexity of the MSSA is far less than that of the DSSA. Meanwhile, the result of simulation experiment indicates that the calculation precision of the MSSA is almost close to that of the DSSA.
AB - In Global Navigation Satellite System (GNSS), the visible satellites combination which has a better geometry distribution can provide better positioning accuracy. Geometry Dilution of Precision (GDOP) can be used to measure the positioning accuracy. The direct satellite selection algorithm (DSSA) is a time-consuming algorithm because it would calculate all GDOP values associated with different combinations to choose the smallest one. In this paper, based on each satellite's contribution for GDOP, a modified satellite selection algorithm (MSSA) is proposed which is dependent on a fixed contribution value. Through the theory analysis, the computational complexity of the MSSA is far less than that of the DSSA. Meanwhile, the result of simulation experiment indicates that the calculation precision of the MSSA is almost close to that of the DSSA.
KW - GDOP
KW - GNSS
KW - modified satellite selection algorithm
KW - satellite contribution value
UR - https://www.scopus.com/pages/publications/84867046513
U2 - 10.1007/978-3-642-31507-7_67
DO - 10.1007/978-3-642-31507-7_67
M3 - Conference contribution
AN - SCOPUS:84867046513
SN - 9783642315060
T3 - Lecture Notes in Electrical Engineering
SP - 415
EP - 421
BT - Advances in Mechanical and Electronic Engineering
T2 - 2012 International Conference on Mechanical and Electronic Engineering, ICMEE 2012
Y2 - 23 June 2012 through 24 June 2012
ER -