基于理想解排序的BDSBAS监测站选址综合评价法

Comprehensive Evaluation Method of BDSBAS Monitoring Station Site Selection Based on Order of Ideal Solution

北斗星基增强系统(BDSBAS)作为北斗卫星导航系统的重要组成部分,不仅是解决关键行业高完好性需求的重要手段,也是应对国际激烈竞争的重要举措,还是北斗应用走向国际的重要助力。BDSBAS地面监测站负责卫星信号的采集、分析、预处理工作,作为提供关键数据的基础设施,合理的选址在北斗星基增强系统建设过程中尤为重要,直接影响着BDSBAS系统的性能。主要研究分析电磁干扰、GNSS天线遮蔽角、多路径干扰、收星数、精度因子(DOP)、观测值精度等因素对监测站站址选择的影响,结合理论基础与真实数据,提出了一种基于理想解排序算法的综合评价办法,来解决在有限方案中监测站最佳位置的选择问题,为后续的站点布设提供参考数据与依据。

As an important part of Beidou Navigation Satellite System(BDS), Beidou Satellite-Based Augmentation System(BDSBAS) is not only an important means to provide a high-integrity navigation service, but also an important measure to cope with the fierce international competition. BDSBAS ground monitoring station is responsible for the acquisition, analysis and pre-processing of satellite signals. As the provider of key data, site selection is very important in the construction of the BDSBAS,which directly affects the performance of the BDSBAS. The impact of the monitoring station site selection, such as electromagnetic interference, GNSS antenna cover angle, the number of multipath interference, the Dilution of Precision(DOP) and the measurement accuracy has been analyzed. Combining with the theories and real data, a comprehensive evaluation method based on order of ideal solution algorithm is proposed, to solve the problem of optimal site selection for monitoring stations and provide reference for subsequent site selection.