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《Electronics Optics & Control》 2018-06
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On Methods for Evaluation of GNSS Signal-in-Space Accuracy

WANG Er-shen;WANG Shi-ming;LEI Hong;PANG Tao;QU Ping-ping;ZHANG Qing;Shenyang Aerospace University,School of Electronic and Information Engineering;Shenyang Aerospace University,Liaoning General Aviation Key Laboratory;Electromagnetic Environment Effect Top Laboratory of Aviation Industry,Shenyang Aircraft Design & Research Institute;  
Signal-in-Space( SIS) accuracy is one of the basic performances of satellite navigation system.Considering the disadvantages of existing accuracy calculation models,we proposed a segmented SIS User Range Error( URE) evaluation model,carried out a study on the models for evaluation of SIS User Range Rate Error( URRE) and the User Range Acceleration Error( URAE),and used the broadcast ephemeris and precise ephemeris to evaluate the SIS accuracy of GPS and BDS. The results show that: the URE of BDS C02 and the URAE of GPS PRN10 are relatively larger,while the SIS URE,URRE and URAE of the other GPS and BDS satellites all conform to their own indicators. It verified the effectiveness of the proposed accuracy evaluation method.
【Fund】: 国家自然科学基金(61571309 61101161);; 辽宁省“百千万人才工程”项目;; 辽宁省高等学校优秀人才支持计划(LR2016069);; 辽宁省教育厅项目(L201716);; 中央高校基本科研业务费专项资金(3132016317)
【CateGory Index】: TN967.1
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