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The research for effects of window functions in radio astronomy
Dong L(董亮)1; Wang M(汪敏)1; He JH(何金华)1; Li ZX(李志玄)1; He, Lesheng2; Wang, WeiLian2
Source PublicationProceedings - 2010 3rd International Congress on Image and Signal Processing, CISP 2010
2010
Volume7
Pages3064-3073
DOI10.1109/CISP.2010.5646168
Contribution Rank第1完成单位
Indexed ByEI
Conference Name2010 3rd International Congress on Image and Signal Processing, CISP 2010
Conference Date2010-10-16
Conference PlaceYantai, China
KeywordWindow Functions Dft Radio Astronomy
Abstract

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.

Funding ProjectN/A
Funding OrganizationN/A
Language英语
Subject Area天文学 ; 射电天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeConference article (CA)
PublisherIEEE Computer Society
Publication Place445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
ISBN978-1-4244-6513-2; 978-1-4244-6516-3
URL查看原文
Archive Date2011-01-12
EI Accession Number20105213529265
EI KeywordsRadio Astronomy
EI Classification Number716.1information Theory And Signal Processing - 716.3radio Systems And Equipment - 913.4manufacturing - 921.3mathematical Transformations
Citation statistics
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5703
Collection射电天文研究组
Affiliation1.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
Recommended Citation
GB/T 7714
Dong L,Wang M,He JH,et al. The research for effects of window functions in radio astronomy[C]. 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States:IEEE Computer Society,2010:3064-3073.
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