气象卫星接收天线标校技术及应用
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摘要
在过去的几十年中,我国气象事业的不断发展,中国风云气象卫星完成了从试验应用型向业务服务性的不断转型,因此对于卫星信号接收天线的可靠性和指向精度要求越来越高。目前用于接收风云系列极轨气象卫星下行信号的天线主要有12m和4.2m天线,其具有动态特性高、波束宽度窄等特点,因此需要在天线安装和运行期间对天线的轴系误差进行精确的标定和校准。本文在传统标校方法的基础上,提出了利用太阳进行的误差标校技术,进一步降低了标校环节的复杂程度,提高了标校精度。
In the past few decades,the Fengyun meteorological satellites have progressed from the experimental phase to the operational phase.The reliability and pointing accuracy requirements for satellite signal receiving antennas are getting higher and higher.The 12-meter and 4.2-meter diameter antenna are used to receive the signals of the Fengyun satellites at present.The characteristics of the antennas are high speed and narrow width of the wave width,and so accurate calibration is necessary when an antenna is built.On the basis of the traditional calibration method,this paper puts forward the error calibration technique using the sun,which can further reduce the complexity of the calibration link and improve the calibration accuracy.
In the past few decades,the Fengyun meteorological satellites have progressed from the experimental phase to the operational phase.The reliability and pointing accuracy requirements for satellite signal receiving antennas are getting higher and higher.The 12-meter and 4.2-meter diameter antenna are used to receive the signals of the Fengyun satellites at present.The characteristics of the antennas are high speed and narrow width of the wave width,and so accurate calibration is necessary when an antenna is built.On the basis of the traditional calibration method,this paper puts forward the error calibration technique using the sun,which can further reduce the complexity of the calibration link and improve the calibration accuracy.
引文
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[15]洪国平,崔新强,任永健,等.夏季武汉市电网气象敏感负荷预测模型[J].气象科技,2015,43(3):557-560
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[2]张军,刘衍,赵迎超.天线与转台之间的坐标关系[J].火控雷达技术,2007,36(1):30-32.
[3]张维全,刘小东,李洋,等.天气雷达天线座水平度检测方法改进[J].气象科技,2008,36(5):643-646
[4]张之栋,韩雷等.佳木斯66米深空天线指向标校的自动化实现[J].天文研究与技术,2017,14(4):436-442.
[5]郭万禄.基于阵列天线测量装备的标校方法研究[J].无线电工程,2012,42(9):57-59.
[6]费业泰.误差理论与数据处理[M].6版.北京:机械工业出版社,1994:216.
[7]毛南平,万胜辉.船载雷达光机轴偏差的动态标校[J].电讯技术,2014,54(9):1210-1215.
[8]韩慧龙.三轴超高精度天线装配、标校[J].军民两用技术与产品,2017(2):89.
[9]陈卫亮,娄亮,陈利锋.光电轴匹配对舰炮跟踪雷达指向精度的影响[J].现代导航,2015(1):35-38.
[10]王玉明,周兴义.测试转台轴线不正交对测量精度影响的分析[J].光学仪器,2008,30(1):11-14.
[11]张捍卫,丁安民,雷伟伟.空间大地测量学中的大气折射理论[M].北京:测绘出版社,2011.262.
[12]施浒立,古天龙.雷达天线和天文望远镜指向误差修正的数学模型[J].电子机械工程,1987(5):4-10.
[13]叶飞,肖萌,银莲,等.利用太阳法自动标定L波段探空雷达天线指向[J].气象科技,2018,46(3):450-454
[14]王永华,王万玉.三轴天线角度标校方法[J].现代电子技术,2014,37(13):81-84.
[15]洪国平,崔新强,任永健,等.夏季武汉市电网气象敏感负荷预测模型[J].气象科技,2015,43(3):557-560
[16]河海大学《测量学》编写组.测量学[M].北京:国防工业出版社,2013:382.
[17]孙明轩,黄宝健.迭代学习控制[M].北京:国防工业出版社,1999:299
[18]赵军祥,教富龙,杨文洁.利用射电星校准13m测控天线指向误差及测试结果[J].飞行器测控学报,2009,28(3):13-15.