Geometric dilution of precision for GPS single-point positioning based on four satellites

作者:Wang Huihui*; Zhan Xingqun; Zhang Yanhua
来源:Journal of Systems Engineering and Electronics, 2008, 19(5): 1058-1063.
DOI:10.1016/S1004-4132(08)60197-8

摘要

To improve the positioning accuracy in GPS point positioning, the geometric dilution of precision (GDOP) including HDOP, VDOP, TDOP, PDOP is commonly considered. The properties of the DOP for the GPS satellite navigation system are studied and the coordinate system is improved in order to decrease the amount of variables. In the end, by simulation and discussing the results, the corresponding conclusions are presented.