BDS/GPS卫星数据质量分析软件开发及应用研究

通过对TEQC数据质量模块相关算法进行分析，实现了支持RINEX2、3 格式的BDS/GPS卫星数据质量分析软件DataQC的开发，其主要参数包括数据完整率、多路径指数、信噪比和周跳等，并增加卫星分布状况以及电离层、接收机硬件延迟偏差估计功能。通过多组数据验证，软件计算指标与TEQC结果具有较高的一致性；在电离层估计方面，与全球电离层格网（global ionosphere maps, GIM）插值计算结果的RMS在3 TECu之内，并可用于接收机硬件延迟偏差稳定性的分析。

Development and Application of BDS/GPS Satellite Data Quality Checking Software

The BDS/GPS data quality checking software DataQC, which supports the RINEX 2 and 3 formats, was developed by analyzing the data quality module of TEQC. The main indexes include data integrity rate, multipath value, signal to noise ratio, cycle slips and so on. The DataQC also supports the estimation functions of ionosphere TEC and receiver differential code bias. The TEC estimated results of both systems are consistent with GIM in magnitude and trend.