Precision Analysis of GNSS Kinematic PPP Based on Different Precise Ephemeris and Clock Products
The development of the International GNSS Service (IGS) Ultra-rapid near-real time satellite ephemeris,the current availibity of multi-constellation and multiple frequency signals all provide advantageous conditions for real-time and near-real time Point Positioning.The precision of GNSS kinematic Precise Point Positioning based on different IGS precise ephemeris and clock products is analyzed and compared using observation data of 6 IGS MGEX stations and one CORS station.Calculation results show that the precision of kinematic PPP based on IGS precise ephemeris and clock products can reach dm to cm level.Different IGS precise satellite and clock products have great effects on the precision of kinematic PPP results.Compared with IGS coordinate reference values published on the IGS website,the precision of kinematic PPP results based on IGS Ultra- Rapid precise ephemeris,Rapid/Final precise ephemeris combining with 5min clock products,and Final precise ephemeris combining with 30s clock products reaches about 3~10dm,1~3dm and 2~8cm respectively.
GNSS Kinematic PPP precise ephemeris and clock products precision analysis
Qiuying Guo Liguo Zhang Wengang Sang
School of Civil Engineering,Shandong Jianzhu University,Shandong Jinan,China Shandong Provincial Institute of Land Surveying and Mapping,Shandong Jinan,China
国内会议
西安
英文
1-10
2015-05-13（万方平台首次上网日期，不代表论文的发表时间）