文章摘要
王郁茗.北斗三代卫星导航系统服务性能仿真评估[J].,2018,37(5):.
北斗三代卫星导航系统服务性能仿真评估
BeiDou Navigation Satellite System Ⅲ Service Performance Simulation Evaluation
投稿时间:2018-01-04  修订日期:2018-03-19
DOI:10.7690/bgzdh.2018.05.004
中文关键词: 北斗三代系统  GDOP  覆盖重数  服务性能  评估
英文关键词: BeiDou Navigation Satellite System Ⅲ  GDOP  covered multiplicity  service performance  evaluation
基金项目:国家自然科学基金(41571441)
作者单位
王郁茗 海军大连舰艇学院航海系辽宁 大连 116018 
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中文摘要:
      为了解第三代北斗卫星导航系统的星座构型及其全球范围内的服务性能,建立北斗三代星座构型。利用 星座可用性和覆盖性评估指标,分别仿真评估在4 个典型MGEX 测站及全球范围进行观测的北斗三代星座服务性能。 评估结果表明:全球范围内北斗三代系统平均可见星14 颗,GDOP 均值为1.41,服务性能与GPS 相当,且通过4 个MGEX 测站评估结果验证在58.75°~160°E 区域北斗性能指标明显优于GPS。该评估结果可为北斗三代系统全面 建成时导航定位服务的有效利用及精度的提高提供参考。
英文摘要:
      In order to understand the constellation configuration of BeiDou Navigation Satellite System Ⅲ and its global service performance, the third-generation constellation configuration of BeiDou was established. Using constellation usability and coverage assessment indicators, the performance of the Beidou third-generation constellation at 4 typical MGEX stations and the global observatory are simulated and evaluated respectively. The evaluation results show that there are an average of 14 stars and a mean GDOP of 1.41 in the global system of BeiDou. The performance of the Beidou system is equivalent to that of the GPS. The performance evaluation of the Beidou in 58.75°-160°E is obviously better than that of the GPS. The results of this evaluation can provide reference for the effective utilization of navigation and positioning services and the improvement of accuracy when the BeiDou Navigation Satellite System Ⅲ are fully completed.
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