摘要
针对BDS数据参与水汽反演解算的可行性和精度有待进一步验证的问题,提出了实时条件下利用BDS/GPS混合观测量进行天顶对流层延迟和大气可降水量估计的数据处理方法。利用亚太地区的BDS/GPS观测站数据进行了水汽反演实验,并利用IGS对流层产品和探空数据资料作为对比真值验证了反演结果的精度。实验结果表明:北斗卫星导航系统估计ZTD/PWV基本满足数值天气预报等应用的精度要求,与单系统相比多系统组合可提高稳定性。
In order to verify the feasibility and precision of atmospheric water vapor from GNSS and the contribution of Bei- dou satellite navigation system. In this paper, the data processing method of ZTD/PWV estimation using real-time BDS/GPS observations is studied. The water vapor inversion experiments were carried out using the BDS/GPS data from the Asia-Pacific region. The accuracy of the inversion results was verified by using the IGS troposphere and sounding data as the comparison true values. The results show that the ZTD/PWV of the Beidou system can meet the precision requirements of numerical weath-er forecasting. Compared with the single system, the multi-system combination can improve the stability.
出处
《导航定位学报》
CSCD
2017年第1期39-45,共7页
Journal of Navigation and Positioning
