Research and Results Analysis of Methods of GNSS Spatial Signal Time Monitoring

doi:10.13474/j.cnki.11-2246.2017.0006

Abstract

Abstract: Methods using GNSS signal in space to monitor time offset among timing stations are dicussed. Three methods namely the traditional PPP, PPP with fixed station coordinates and the real-time network solutions are compared. To validate and assess the performance of SIS time offset monitoring, data of 5 GNSS stations with different configurations are analyzed.Results show that:(1)Precision of real time network solutions is 0.16 ns, which is at the same level of post-processed PPP.(2)Station coordinates estimation has impact on the determination of station clocks,which is about 0.04 ns. (3) Precision of time transfer for stations depart 2000 km could reach 0.14 ns in the real-time network solution.

Key words: time monitoring, spatial signal, real-time network solution, PPP

CLC Number:

P224

ZHANG Jiejun, CHEN Junping, ZHANG Yize. Research and Results Analysis of Methods of GNSS Spatial Signal Time Monitoring[J]. 测绘通报, 2017, 0(1): 26-29,92.

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