宇航计测技术

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卫星远场测试工艺装备设计

徐波涛1,2;吕景辉1,2;朱位3;刘哲3;代卫兵1;陈大猛1   

  1. 1、北京卫星环境工程研究所,北京 100094;
    2、北京市航天产品智能装配技术与装备工程技术研究中心,北京 100094;
    3、中国空间技术研究院总体设计部,北京 100094
  • 出版日期:2017-08-24 发布日期:2017-08-24
  • 作者简介:徐波涛(1982-),男,研究生,工程师,主要研究方向:航天器总装与测试技术。

Processing Equipment Design for Satellite Far Field Wireless Tests

XU Bo-tao1,2;LV Jing-hui1,2;ZHU Wei3;LIU Zhe3;DAI Wei-bing1;CHEN Da-meng1   

  1. 1、Beijing Institute of Spacecraft Environment Engineering, Beijing, 100094,China;
    2、Beijing Engineering Research Center of the Intelligent Assembly Technology and Equipment for Aerospace Product, Beijing, 100094, China;
    3、Beijing Institute of Spacecraft System Engineering, Beijing 10094, China
  • Online:2017-08-24 Published:2017-08-24

摘要: 导航卫星播发信号的用户等效测距误差(UERE)受到众多因素的影响,多径效应是其中较为主要的一个因素。为了测定卫星外形布局对多径效应及其带来的伪距误差的影响,同时为了验证减少多径效应的布局优化措施是否有效,有必要进行导航卫星的无线测试。在对试验技术条件进行充分研究后,设计了一系列的试验支持装配和工具,满足了多个状态的测试要求。通过工装的关键功能设计,完成了某卫星远场测试,测定了导航定位误差在典型工况下的量级,对卫星导航误差分析和提高定位精度有着重要意义。

关键词: 导航卫星, 远场, 测试, 多径, 工艺设备

Abstract: User equivalent ranging error(UERE) of navigation satellites based on broadcast message is affected by a number of factors. Multiple-path effect is one of the major contributor to the error of pseudo range. Experiments and tests are needed to determine that how error of pseudo range is connected to the shape of a satellite, and to verify how to lessen multiple path effect by re-arranging the outer structure of a satellite, such as solar arrays or antennas. A series of equipments and infrastructure are built according to the technical conditions of the experiments. By means of the critical function of the equipment, the satellite far-field wireless tests are completed, the level of pseudo range error is finally determined in typical conditions. It is significant for satellite navigation error analysis and for enhancing the positioning accuracy.

Key words: Navigation satellite, Far field, Test, Multiple-path, Processing equipment