| 摘要: |
| 为了将天线组阵技术应用于测量船动平台，必须分析船摇的影响。建立了测量船
多测控天线指向同一目标时距离差值随船摇变化的数学模型，在此基础上得到距离差值变化
率与天线方位角、俯仰角的关系曲线，对测量船各频段天线组阵信号合成效率与积分时间进
行了分析，表明距离差值变化率直接影响信号合成时间，进而影响合成效率，频率越高合成
效率越低。 |
| 关键词: 深空探测 航天测量船 天线组阵 信号合成效率 船摇 |
| DOI： |
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| 基金项目: |
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| Effect of ship swaying on signal′s synthesis efficiency of antenna array |
| MAO Nan-ping,LI Qi-fu,FANG Xin-bing,LI Pei |
| (China Satellite Maritime Tracking and Control Department, Jiangyin 214431，China) |
| Abstract: |
| It is important to analyse the effect of ship swaying in applying the
technique of antenna array to space TT&C ship. The relation model between
range difference and ship swaying is presented when radar′s antennas point to t
he same target. And the relation curves between speed of range difference and a
ngles of antenna′s azimuth and pitch are plotted. The synthesis efficiency and
integral time of various frequencies′ signals are analysed,which shows that sig
na
l′s synthesis time is affected directly by speed of range difference,thus signa
l
′s synthesis efficiency is affected. It is also shown that the higher the frequ
ency is,the lower the synthesis efficiency is. |
| Key words: deep space exploration space TT&C ship antenna arraying signal synthesis effici
ency ship swaying |
《电讯技术》编辑部 