大地测量与地球动力学2013，Vol.33Issue(2)：54-57,62,5.
利用GPS/GLONASS组合精密单点定位方法估计天顶对流层延迟
ESTIMATION OF ZENITH TROPOSPHERIC DELAY USING COMBINED GPS/GLONASS PPP METHOD
摘要
Abstract
A combined GPS/GLONASS precise point positioning (PPP) approach is proposed to estimate zen ith tropospheric delay (ZTD) ,and the results are compared with those from GPS-only PPP. The new ZTD products of IGS are used as references to assess the estimated ZTD. The numerical computations are conducted using IGS da ta collected at three Chinese stations within one GPS week. The results show that the different settings of elevation angle cutoff and spectral density value of tropospheric delay parameter have a large impact on the ZTD estimates. Compared with GPS-only PPP, the ZTD estimates obtained from the combined GPS/GLONASS PPP are more con sistent with IGS products.关键词
GPS/GLONASS/IGS/精密单点定位/对流层延迟Key words
GPS/ GLONASS/ IGS/ precise point positioning/ tropospheric delay分类
天文与地球科学引用本文复制引用
蔡昌盛,夏朋飞,史俊波,戴吾蛟..利用GPS/GLONASS组合精密单点定位方法估计天顶对流层延迟[J].大地测量与地球动力学,2013,33(2):54-57,62,5.基金项目
国家自然科学基金(41004011) （41004011）
