QUALITY CHECKING AND EVALUATION OF OBSERVATION DATA FROM JLCORS
Chenxi Zhang · Journal of Disaster Prevention and Reduction · 2015
Using TEQC software to comprehensive cheek and evaluate the observation data of 49 continuous operation observation station from JLCORS network system,including data integrity, ionospheric delay and variable rate, multipath effect etc., sampling rate selection for 30 seconds.The results show, 95% of the observation stations sampled effect rate distribution between 0.9~1.80% of the observation stations CSR value distribution between 0.0~0.35; all sites of multipath MP1, MP2 indexes of RMS within 0.15 to 0.45 m range, network system MP1, MP1 maximum value respectively is SLAN station 0.45 m and DEFN 0.42 m station. The receivers are operating in good condition, observation environment and the quality of observation data in full compliance with the the technical specification fo China crustal movement observation network, and are superior to that of international IGS site standards.The statistics data about ionospheric delay time and unhealthy satellite can provide a reliable basis for the treatment of GNSS.