卫星天线过顶盲区时机分析Divergence opportunity analysis on zenith-passing blind zone of satellite antenna
晁宁,罗晓英,杨新龙
摘要(Abstract)：
分析直角坐标框架结构平台和极坐标框架平台结构星载天线在各自盲区状态区域附近的发散问题。通过建立的天线过顶盲区发散模型,计算机械天线盲区时第一级转动单元转角的发散时机和发散程度以及对波束锥角的影响。确定不同波束锥角误差情况下不同发散范围对应的单轴误差分布情况,以及盲区附近第一级转动单元的位置与速度偏差对空间波束误差的影响程度。为机械式星载天线在不同通信链路需要下的工况设置提供了理论指导。
关键词(KeyWords)： 机械天线;盲区;过顶;卫星天线;发散模型;星间链路
基金项目(Foundation): 国家自然科学基金(11290154)~~
作者(Author): 晁宁,罗晓英,杨新龙
DOI: 10.16652/j.issn.1004-373x.2018.01.004
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