新一代厘米-分米波射电日像仪电磁环境监测

发布时间：2018-04-26 10:39

本文选题：日像仪 + 抗干扰　；参考：《微波学报》2016年S2期

【摘要】：新一代厘米-分米波射电日像仪是一种运用综合孔径成像方法观测太阳射电信号,并在厘米-分米波段对太阳进行成像,以便获得某时刻电子在宽频带范围内射电频谱的大致情况。当太阳表面出现爆发现象时,其强度和频谱变化都很剧烈,为了能够在相当宽的频带内得到太阳射电辐射的变化,国家天文台太阳射电团组在内蒙古明安图镇建立了观测太阳射电信号的日像仪。在建立之初,也对当地的复杂电磁环境的组成以及特点进行了分析,并考虑构成复杂电磁环境的各种因素对接收太阳信号会形成干扰,针对当地电磁环境,提出了相应的抗干扰措施。
[Abstract]:The new generation of centimeter-decimeter radio heliograph is a kind of integrated aperture imaging method to observe the solar radio signal and to image the sun in the centimeter-decimeter wave band. In order to obtain an electron radio spectrum in a wide-band range at a certain time. When there is an explosion on the surface of the sun, the intensity and the frequency spectrum change dramatically, so that the changes in the solar radio radiation can be obtained in a very wide frequency band. The solar radio group of the National Astronomical Observatory established a solar imaging apparatus for observing solar radio signals in Minantuzhen, Inner Mongolia. At the beginning of its establishment, the composition and characteristics of the local complex electromagnetic environment were also analyzed, and various factors constituting the complex electromagnetic environment were considered to interfere with the reception of the solar signal, aiming at the local electromagnetic environment. The corresponding anti-jamming measures are put forward.
【作者单位】：中国科学院国家天文台;北京空间飞行器总体设计部;
【基金】：国家自然科学基金面上项目(11573043)
【分类号】：P111.41

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