船摇对组阵天线信号合成效率的影响  

Effect of Ship Swaying on Signal's Synthesis Efficiency of Antenna Array

作　　者：毛南平[1] 李其福[1] 房新兵[1] 李培[1] 

机构地区：[1]中国卫星海上测控部,江苏江阴214431

出　　处：《电讯技术》2012年第8期1247-1250,共4页Telecommunication Engineering

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。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 the same target. And the relation curves between speed of range difference and angles of antenna＇s az- imuth and pitch are plotted. The synthesis efficiency and integral time of various frequencies＇ signals are analysed, which shows that signal＇s synthesis time is affected directly by speed of range difference,thus signal＇s synthesis ef- ficiency is affected. It is also shown that the higher the frequency is, the lower the synthesis efficiency is.

关 键 词：深空探测 航天测量船 天线组阵 信号合成效率 船摇 

分 类 号：TN911[电子电信—通信与信息系统]