基于CGGTTS V2E标准的共视时间比对算法仿真
|
摘要
随着卫星共视时间比对方法的广泛应用,国际咨询委员会发布了扩展的时间传递标准,即CGGTTS V2E。根据CGGTTS V2E新标准的具体要求,进行了详细的理论研究和实验验证,并采用软件仿真算法对接收机输出的实测数据进行共视比对处理,实现了GPS和BDS双系统兼容的、新型的共视时间比对和传递算法。仿真结果表明,在短基线共视比对测试中,基于GPS和BDS的单颗卫星的共视时间比对精度均优于1.5ns,达到国内领先水平。
With the wide application of satellite common-view time comparison method, the International Advisory Council published an extended standard of time transfer, namely, CGGTTS V2 E. According to the specific demand of new standard of CGGTTS V2 E, this paper carried out detailed theoretical research and experiment. Meanwhile, the algorithm of software simulation was applied to the common-view comparison of the measured data outputted by the receiver, so that new common-view time comparison and transmission algorithm that was compatible with GPS and GLONASS dual system was realized. Following conclusion can be drawn from simulation results. In the short baseline common-view comparison test, the accuracy of common-view time comparison of single satellite based on GPS and BDS is better than 1.5 ns. It reaches a leading level in China.
With the wide application of satellite common-view time comparison method, the International Advisory Council published an extended standard of time transfer, namely, CGGTTS V2 E. According to the specific demand of new standard of CGGTTS V2 E, this paper carried out detailed theoretical research and experiment. Meanwhile, the algorithm of software simulation was applied to the common-view comparison of the measured data outputted by the receiver, so that new common-view time comparison and transmission algorithm that was compatible with GPS and GLONASS dual system was realized. Following conclusion can be drawn from simulation results. In the short baseline common-view comparison test, the accuracy of common-view time comparison of single satellite based on GPS and BDS is better than 1.5 ns. It reaches a leading level in China.
引文
[1]雷雨.GPS载波相位时间比对数据处理[D].中国科学院研究生院(国家授时中心),2010.
[2]Allan,Thomas.Technical Directives for Standardization of GPSTime Receiver Software[J].Metrologia,1994,(31):69-79.
[3]W Lewandowski,et al.A Contribution to the Standardization of GPS and GLONASS Time Transfers[C].PTTI,Virgiuia,1996.
[4]Defraigne,Petit.CGGTTS-Version 2E:an extended standard for GNSS Time Transfer[J].Metrologia,2015.
[5]陈瑞琼,刘娅,李孝辉.基于改进的卫星共视法的远程时间比对研究[J].仪器仪表学报,2016,37(4):757-763.
[6]张强,等.北斗卫星导航系统Klobuchar模型精度评估[J].武汉大学报(信息科学版),2014,39(2):142-146.
[7]Boehm,Niell,et al.Global Mapping Function(GMF):A new empirical mapping function based on numerical weather model data[J].Geophysical Research Letters,2006.
[8]J G Teunissen Peter,O Montenbruck.Handbook of Global Navigation Satellite Systems[M].Springer,2017.
[9]中国卫星导航系统管理办公室.北斗卫星导航系统空间信号接口控制文件:公开服务信号(2.1版)[R].2016.
[10]Navstar GPS Space Segment/Navigation User Segment Interfaces,IRN-IS-200H-003[R].CA,2016.
[2]Allan,Thomas.Technical Directives for Standardization of GPSTime Receiver Software[J].Metrologia,1994,(31):69-79.
[3]W Lewandowski,et al.A Contribution to the Standardization of GPS and GLONASS Time Transfers[C].PTTI,Virgiuia,1996.
[4]Defraigne,Petit.CGGTTS-Version 2E:an extended standard for GNSS Time Transfer[J].Metrologia,2015.
[5]陈瑞琼,刘娅,李孝辉.基于改进的卫星共视法的远程时间比对研究[J].仪器仪表学报,2016,37(4):757-763.
[6]张强,等.北斗卫星导航系统Klobuchar模型精度评估[J].武汉大学报(信息科学版),2014,39(2):142-146.
[7]Boehm,Niell,et al.Global Mapping Function(GMF):A new empirical mapping function based on numerical weather model data[J].Geophysical Research Letters,2006.
[8]J G Teunissen Peter,O Montenbruck.Handbook of Global Navigation Satellite Systems[M].Springer,2017.
[9]中国卫星导航系统管理办公室.北斗卫星导航系统空间信号接口控制文件:公开服务信号(2.1版)[R].2016.
[10]Navstar GPS Space Segment/Navigation User Segment Interfaces,IRN-IS-200H-003[R].CA,2016.