【摘 要】
：
With a hybrid constellation comprised of Geostationary Orbit (GEO) satellite,Inclined Geosynchronous Orbit (IGSO) satellite and Medium Earth Orbit (MEO) satellite,the BeiDou satellite navigation syste
【机 构】
：
College of Intelligent Science and Control Engineering, Jinling Institute of Technology Nanjing 2111
论文部分内容阅读
With a hybrid constellation comprised of Geostationary Orbit (GEO) satellite,Inclined Geosynchronous Orbit (IGSO) satellite and Medium Earth Orbit (MEO) satellite,the BeiDou satellite navigation system (BDS) has the potential to provide navigation solutions with high accuracy and integrity,either as a standa-lone system or compensates with others.In this paper,the navigation perfor-mances of BDS are compared with GPS,in Minimum Detectable Biases (MDBs),as well as fault separability capability are evaluated via simulation analysis.The MDB characteristics of different BDS satellites are summarized.For the GPS/BDS integrated system,the reliability and separability are all largely improved.In the integrated system the MDBs values for BDS MEO and IGSO and GPS satellites are both smaller than 6m,while the values for the GEO satellite are between 8m to 9m.The corresponding correlation coefficients between the fault detection statistics are all less than 0.5 and 80% of them are smaller than 0.3.This ensures a higher probability of successfully identifying the fault,compared with the standalone systems.
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