FPGA Based Nature Noise Reduction and RFI Removing in Radio Astronomy

	FPGA Based Nature Noise Reduction and RFI Removing in Radio Astronomy
	Dong L(董亮)1 ; Wang M(汪敏)1 ; Xu C(许春)1 ; Shi SB(施硕彪)1 ; Bai, ZY 2; He, LS 2
	2009
会议名称	2nd International Congress on Image and Signal Processing
会议日期	2009-10-17
会议地点	Tianjin, PEOPLES R CHINA
关键词	Nature Noise RFI (Radio Frequency Interference) weak radio astronomy sources
页码	3902-3906
通讯作者	Dong, LA (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
英文摘要	In radio astronomy, our observation sources' emission are sometimes more weaker than RFIs' (Radio Frequency Interference), so RFIs' removing is very important in getting useful and valuable information from these sources. A new FPGA based method for nature noise reduction and RFIs removal is proposed in this paper. First we analyze the different Nature noise condition with different positions and generating mechanisms. Secondly, we analyze the different RFI forms, there are three RFI styles, and giving the different influences to radio astronomy observation. Finally, we use the different digital filters' assembly forms in FPGA to remove the influence which different RFI pulling into the Nyquist bandwidth.
收录类别	EI ; CPCI
产权排序	第1完成单位
会议网址	http://ieeexplore.ieee.org/document/5301097/
会议录	PROCEEDINGS OF THE 2009 2ND INTERNATIONAL CONGRESS ON IMAGE AND SIGNAL PROCESSING, VOLS 1-9
会议录出版者	IEEE
会议录出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
学科主题	Computer Science ; Imaging Science & Photographic Technology ; Telecommunications
语种	英语
ISBN号	978-1-4244-4130-3
WOS记录号	WOS:000280804302120
研究领域[WOS]	Computer Science ; Imaging Science & Photographic Technology ; Telecommunications
内容类型	会议论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5716]
专题	云南天文台_射电天文研究组
作者单位	1.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,Xu C,et al. FPGA Based Nature Noise Reduction and RFI Removing in Radio Astronomy[C]. 见:2nd International Congress on Image and Signal Processing. Tianjin, PEOPLES R CHINA. 2009-10-17.http://ieeexplore.ieee.org/document/5301097/.