计算机工程 ›› 2011, Vol. 37 ›› Issue (15): 276-278,285.doi: 10.3969/j.issn.1000-3428.2011.15.090

• 开发研究与设计技术 • 上一篇    下一篇

机场场面多点定位系统定位精度研究

宫峰勋,雷艳萍,许 跃,马艳秋   

  1. (中国民航大学电子信息工程学院,天津 300300)
  • 收稿日期:2011-01-14 出版日期:2011-08-05 发布日期:2011-08-05
  • 作者简介:宫峰勋(1965-),男,教授,主研方向:数据融合,导航与控制系统,国际民航新航行系统;雷艳萍、许 跃,硕士研究生;马艳秋,副研究员
  • 基金项目:
    国家自然科学基金资助项目(60672172);天津市教委科研计划基金资助项目(20090713);中国民航大学科研基金资助项目(08CAUC_E04);中央高校基金资助项目(ZXH2009C007)

Research on Multilateration System Positioning Precision for Airport Surface

GONG Feng-xun, LEI Yan-ping, XU Yue, MA Yan-qiu   

  1. (College of Electronic and Information Engineering, Civil Aviation University of China, Tianjin 300300, China)
  • Received:2011-01-14 Online:2011-08-05 Published:2011-08-05

摘要: 研究多点定位系统原理,建立定位精度模型,并对定位误差与布站几何的关系进行分析。通过倒三角形布站、星型布站仿真分析视距环境中影响定位精度的变化因素,绘制几何精度因子等值线分布图。通过中间的理论推导及模拟具体数据,给出各种布站方式覆盖范围值,得到机场场面最优布站形式。实验结果表明,该布站形式在多点定位系统中可获得较高的定位精度。

关键词: 多点定位系统, 几何精度因子, 覆盖范围, 最优布站

Abstract: A location precision model is established by studying the principle of Multilateration(MLAT) system. The relationship between positioning errors and distribution geometry of stations is analyzed. The influencing factors on the position accuracy are simulated in Light of Sight (LOS) through the distribution of inverted triangle station and Star-model station, and then the distribution of the isoline of the Geometric Dilution of Precision(GDOP) is drawed. By the theoretical derivation and the simulating with the detailed data, the different distribution coverage value is shown. At last the optimal distribution layout is presented. Experimental results show that the higher positioning precision can be obtained with these distribution layouts in MLAT system.

Key words: Multilateration(MLAT) system, Geometric Dilution of Precision(GDOP), coverage area, optimal distribution

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