基于动态PPP技术,用IGS参考站的静态数据进行动态PPP模拟计算,对静态得到的PPP-ZTD、动态计算得到的PPP-ZTD与IGS公布的ZTD参考值的比较发现,使用动态PPP技术和较高采样间隔的卫星钟差(30 s)也可以获得精度较高的对流层延迟(〈6 mm)。
Static data were conversed as dynamic modal using dynamic Precise Point Positioning( PPP) technique. Comparison of the Zenith Tropospheric Delay( ZTD) of the dynamic PPP to the ZTD of static PPP indicates that the dynamic PPP technique by using higher sampling interval SCBs( 30s or higher) can also obtain high-precision ZTDs. This study provides a new method to achieve water vapor acquisition.