多GNSS系统组合在城市峡谷中的定位性能分析
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摘要
随着多GNSS系统的部署,利用多GNSS组合定位有可能解决GNSS在城市中定位效果不理想的问题。讨论了联合多GNSS系统组合定位的关键问题,包括时空基准的统一和系统间偏差的处理;通过分析比较,确定了合理的多系统组合定位函数模型,并通过多系统组合定位实验证明,利用多系统组合的方法可提高GNSS系统在城市峡谷中定位的可用性和可靠性。
However, due to signal obstruction of high-rise buildings and vegetarians, the global navigation satellite system(GNSS) does not work well in the urban district. As the deployment of multi-GNSS system, employing more satellites is considered as one of the most promising way to improve its performance in urban canyon. This paper discussed several key problems in the combining multi-GNSS positioning, including unifying spatio-temporal datum and handling inter-system bias. With numerical analysis, the paper determined the proper mathematical model. And then, the experiment results demonstrate that the positioning availability and reliability of GNSS in urban canyon can be improved by the combining GPS/GLONASS/BeiD ou positioning method.
However, due to signal obstruction of high-rise buildings and vegetarians, the global navigation satellite system(GNSS) does not work well in the urban district. As the deployment of multi-GNSS system, employing more satellites is considered as one of the most promising way to improve its performance in urban canyon. This paper discussed several key problems in the combining multi-GNSS positioning, including unifying spatio-temporal datum and handling inter-system bias. With numerical analysis, the paper determined the proper mathematical model. And then, the experiment results demonstrate that the positioning availability and reliability of GNSS in urban canyon can be improved by the combining GPS/GLONASS/BeiD ou positioning method.
引文
[1]WANG L,Groves P D,Ziebart M K.Multi-constellation GNSS Performance Evaluation for Urban Canyons Using Large Virtual Reality City Models[J].Journal of Navigation,2012,65(3):459-476
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[3]Marek Ziebart,Mojtaba Bahrami.GNSS Geodetic Reference Frames:Consistency,Stability and the Related Transformation Parameters[C].Teddington:i Nsight Workshop,2012
[4]CSNO.Bei Dou Navigation Satellite System Signal in Space Interface Control Document(Beta Version)[S].China Satellite Navigation Office,Beijing,2012
[5]JAXA.Quasi-Zenith Satellite System Navigation Service Interface Specification for QZSS[S].2012
[6]Rossbach U.Positioning and Navigation Using the Russian Satellite System GLONASS[D].Universitat Der Bundeswehr Munchen,2001
[7]WANG L,FENG Y M.Positioning Performance Analysis of Single Point Positioning with Integrated GPS/GLONASS/Bei Dou and QZSS Constellation[C]//Brisbane:Asia Oceania Geosciences Society 10 Annual Meeting,2013
[2]高星伟,过静珺,程鹏飞,等.基于时空系统统一的北斗与GPS融合定位[J].测绘学报,2012,41(5):743-748
[3]Marek Ziebart,Mojtaba Bahrami.GNSS Geodetic Reference Frames:Consistency,Stability and the Related Transformation Parameters[C].Teddington:i Nsight Workshop,2012
[4]CSNO.Bei Dou Navigation Satellite System Signal in Space Interface Control Document(Beta Version)[S].China Satellite Navigation Office,Beijing,2012
[5]JAXA.Quasi-Zenith Satellite System Navigation Service Interface Specification for QZSS[S].2012
[6]Rossbach U.Positioning and Navigation Using the Russian Satellite System GLONASS[D].Universitat Der Bundeswehr Munchen,2001
[7]WANG L,FENG Y M.Positioning Performance Analysis of Single Point Positioning with Integrated GPS/GLONASS/Bei Dou and QZSS Constellation[C]//Brisbane:Asia Oceania Geosciences Society 10 Annual Meeting,2013