短波时差定位中电离层参数对定位影响仿真
发布时间：2018-08-03 08:56
【摘要】：在短波波段,由于电离层反射传播,电波传播路径与实际地面距离存在较大差异,传统时差定位方法不再适用.文章提出一种基于电离层射线追踪技术的时差定位技术,在此基础上,仿真分析了电离层参数对定位精度的影响.结果表明:在准确获取电离层信息情况下,本方法可准确定位目标;电离层测量误差对定位精度影响较大;站点增加可提高定位精度,降低对电离层参数获取精度要求.仿真结果为短波时差定位系统研制以及电离层参数获取精度要求提供了理论依据.
[Abstract]:In the short wave band, there is a great difference between the propagation path of the ionosphere and the actual ground distance, and the traditional time difference positioning method is no longer applicable. In this paper, a time difference positioning technique based on ionospheric ray tracing technology is proposed. On this basis, the influence of the ionosphere parameters on the positioning accuracy is simulated and analyzed. In the case of accurate acquisition of ionosphere information, this method can accurately locate the target; the ionospheric measurement error has a great influence on the positioning accuracy; the increase of the site can improve the positioning accuracy and reduce the accuracy requirements for the acquisition of the ionosphere parameters. The simulation results provide a theoretical basis for the development of the short wave time difference positioning system and the requirement for the accuracy of the ionospheric parameters.
【作者单位】： 海军参谋部信息通信局;中国电波传播研究所;
【基金】：国家自然科学基金(No.61331012)
【分类号】：TN011
本文编号：2161241
[Abstract]:In the short wave band, there is a great difference between the propagation path of the ionosphere and the actual ground distance, and the traditional time difference positioning method is no longer applicable. In this paper, a time difference positioning technique based on ionospheric ray tracing technology is proposed. On this basis, the influence of the ionosphere parameters on the positioning accuracy is simulated and analyzed. In the case of accurate acquisition of ionosphere information, this method can accurately locate the target; the ionospheric measurement error has a great influence on the positioning accuracy; the increase of the site can improve the positioning accuracy and reduce the accuracy requirements for the acquisition of the ionosphere parameters. The simulation results provide a theoretical basis for the development of the short wave time difference positioning system and the requirement for the accuracy of the ionospheric parameters.
【作者单位】： 海军参谋部信息通信局;中国电波传播研究所;
【基金】：国家自然科学基金(No.61331012)
【分类号】：TN011
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，本文编号：2161241
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