北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2013, Vol. 36 ›› Issue (5): 25-29.doi: 10.13190/j.jbupt.2013.05.006

• 论文 • 上一篇    下一篇

多波束接收天线形式下的低轨卫星多普勒特性

姜泉江, 刘会杰   

  1. 1. 中国科学院 上海微系统与信息技术研究所, 上海 200050;
    2. 上海微小卫星工程中心, 上海 201203
  • 收稿日期:2013-01-04 出版日期:2013-10-31 发布日期:2013-08-09
  • 作者简介:姜泉江(1981-),男,助理研究员,博士生,E-mail:jiangquanjiang@163.com;刘会杰(1972-),男,研究员,博士生导师.
  • 基金资助:

    上海市自然科学基金项目(12ZR1450000)

Doppler Character of the Multi-Beam Receiving Antenna on the Low Earth Orbit Satellites

JIANG Quan-jiang, LIU Hui-jie   

  1. 1. Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science, Shanghai 200050, China;
    2. Shanghai Engineering Center for Microsatellites, Shanghai 201203, China
  • Received:2013-01-04 Online:2013-10-31 Published:2013-08-09

摘要:

采用多波束接收天线的低轨卫星通信系统,其各波束的多普勒特性有别于采用单波束天线的系统。为分析各波束的多普勒特性,通过建立矢量分析模型推导了波束覆盖区的等多普勒曲线表达式,仿真实验给出了特性曲线;结合多波束覆盖范围的计算,完成了各接收多波束的多普勒特性分析;最后说明了该特性在星载多波束捕获模块设计中的初步应用。

关键词: 低轨卫星, 多波束, 多普勒特性

Abstract:

The Doppler character of low-earth orbit satellites, carrying multi-beam receiving antenna, is different from the character of single-beam antenna systems. In order to analyze the Doppler character of each beam, expression of iso-Doppler characteristic curve was derived with help of establishment of vector analysis model. The characteristic curve picture was obtained using computer simulation. Analysis of each receiving multi-beam Doppler character was achieved when combined with the multi-beam coverage calculation. Finally, the preliminary application on the on-board multi-beam captures module was explained and illustrated.

Key words: low-earth orbit satellite, multi-beam, Doppler character

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