摘要
每天有许多大小不同的流星进入地球大气层,其中绝大多数被燃烧尽,并在它的路径上留下了光亮的离化的尾巴。大的流星尾巴可被肉眼看见,但最经常出现的是那些亮度相当于15等星以上的小尾:这些小尾成了雷达探测的目标。在第二次世界大战期间,雷达出现后,流星的研究才开始使用雷达技术。到目前为止,世界上发达国家已经建立了许多专门用于探测研究流星的雷达,而且也取得了一批重要的研究成果。本文简要的叙述流星及流星尾的物理特性,流星雷达的工作原理及如何设计选择流星雷达的有关参数,并给出了在陕西天文台建立流星雷达的基本参数。
Many meteors of various sizes enter the earth's atmosphere and burn up every day, leaving ionized and flashing trails in their path. The larger trails can be seen with the naked eye, but even the smaller meteors down to 15th magnitude,which are more common,The left trails that provide radar targets. After the development of radar in World War Ⅱ. Studies of meteors were stared using this technique. Up to now, there have been many Meteor Radar used in the developed countries and many important achievements were obtained. This paper briefly points out the physical characteristics of meteor and its trail, discribes the operation principle of Meteor Radar and its design, that is selection of the relavent parameters for Meteor Radar. Finally given the set of parameters of Meteor Radar which will plan to built in Shaanxi Astronomical Observatory.
出处
《陕西天文台台刊》
CSCD
1989年第1期21-33,共13页
Publications of The Shaanxi Astronomical Observatiory
关键词
流星雷达
设计
雷达探测
Meteor Radar, Atmosphere Wind, Meteor Trail.
