请输入您要查询的字词:

 

单词 drift scan
释义
drift scan

Astronomy
  • A technique for surveying the sky in which the telescope is fixed and the rotation of the Earth carries celestial objects through its beam. Many radio interferometers designed for survey work are not physically steerable and rely on drift scanning to cover large areas of sky. Drift scanning has the advantage of a uniform, precise scan rate and consequent accurate positioning, but it is relatively inflexible. See also Raster Scan.


随便看

 

科学参考收录了60776条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。

 

Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号 更新时间:2024/12/25 1:41:23