The research for effects of window functions in radio astronomy | |
Dong L(董亮)1![]() ![]() ![]() ![]() | |
2010 | |
会议名称 | 2010 3rd International Congress on Image and Signal Processing, CISP 2010 |
会议日期 | 2010-10-16 |
会议地点 | Yantai, China |
关键词 | Window functions DFT radio astronomy |
卷号 | 7 |
页码 | 3064-3073 |
英文摘要 | In radio astronomy, DFT (Discrete Fourier Transformation) is usually used to analyze radio sources. The window functions play important roles in DFT, They determines spectra's main-lobe width and leakages, and then affect observation results. In this paper, at first we discuss the different window functions in DFT algorithm, including their main-lobe widths, peak side lobe levels, and so on. And then, we discuss three kinds of signals in radio astronomy and their different processing methods. At last, we get a conclusion that different signals analyzing must choose the corresponding window function for reducing the window functions' effects. |
收录类别 | EI |
产权排序 | 第1完成单位 |
会议网址 | http://ieeexplore.ieee.org/document/5646168/ |
会议录 | Proceedings - 2010 3rd International Congress on Image and Signal Processing, CISP 2010
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会议录出版者 | IEEE Computer Society |
会议录出版地 | 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States |
学科主题 | 天文学 |
语种 | 英语 |
ISBN号 | 978-1-4244-6513-2; 978-1-4244-6516-3 |
内容类型 | 会议论文 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/5703] ![]() |
专题 | 云南天文台_射电天文研究组 |
作者单位 | 1.Radio astronomy research group, Yunnan Observatory of Chinese Academy Science, Kunming 650011 China 2.School of Information ScieHence and Engineering, Yunnan University, Kunming 650091 China |
推荐引用方式 GB/T 7714 | Dong L,Wang M,He JH,et al. The research for effects of window functions in radio astronomy[C]. 见:2010 3rd International Congress on Image and Signal Processing, CISP 2010. Yantai, China. 2010-10-16.http://ieeexplore.ieee.org/document/5646168/. |
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