The Influence of Satellite Clock Bias Sampling Intervals
on the Precision of High Frequency PPP-ZTD
1 Hunan Provincial Key Laboratory of Clean Coal Resources Utilization and Mine Eviromental Protection，
Hunan University of Science and Technology， Taoyuan Road, Xiangtan 411201, China
2 Shanghai Astronomical Observatory，Chinese Academy of Sciences，80 Nandan Road, Shanghai 200030, China
3 The Climate Center of Hunan Province，196 South-Furong Road, Changsha 410119, China
Abstract：The high temporal transient changes of water vapor content can be reflected by high frequency zenith tropospheric delay(ZTD)which is important for rainstorm shortterm precasting.Based on the precise point positioning(PPP)technology，the PPP-ZTD precision with the different sampling interval satellite clock biases(SCB)was analyzed.The result indicates that the precisions of PPP-ZTD(RMS <4 mm)with 5 s and 30 s sampling interval SCBs were better than the precisions of PPP-ZTD(RMS<6 mm)with 5 min sampling interval SCB.Both the obtained PPP-ZTD precision with the sampling interval of 5 s and 30 s SCBs are considerable.
LI Li,LI Haojun,LONG Sichun et al. The Influence of Satellite Clock Bias Sampling Intervals
on the Precision of High Frequency PPP-ZTD[J]. jgg, 2015, 35(1): 77-80.
