数字边带分离混频器的优化与仿真

doi:10.14005/j.cnki.issn1672-7673.2014.03.014

XAO OpenIR > 射电天文研究室 > 微波技术实验室

	数字边带分离混频器的优化与仿真
Alternative Title	Optimizing and Simulating a Digital Sideband-Separating Mixer
	李会玲1 ; 陈卯蒸1,2
	2014-07
Source Publication	天文研究与技术
ISSN	1672-7673
Volume	11 Issue:3 Pages:275-280
Contribution Rank	1
Abstract	简要介绍了利用现代数字信号处理技术实现的适合宽带超宽带接收机的数字边带分离混频器的数学原理,同时对数字边带分离混频器进行了优化,并用MATLAB在L波段(1~2 GHz)对数字边带分离混频器优化进行了仿真验证,在500 MHz的带宽内实现了优于300 dB的边带抑制率。这些工作为利用数字技术实现数字边带分离混频器提高了运算速度,符合射电天文接收机向宽带超宽带和集成化发展的趋势。
Other Abstract	We describe the mathematical principle of a Digital Sideband-Separating Mixer (DSSM) to work with a wideband or ultra-wideband receiver based on modern digital signal-processing technologies． We also realize certain optimization of a DSSM． We present MATLAB simulations of an optimized DSSM in the Lband (1GHz to 2GHz) ． Sideband Ｒejection Ｒatios better than 300dB are achieved at all frequencies in a band of a width of 500MHz．Our work can improve computing speeds of future DSSMs，and it fits development trends of radio-astronomy receivers，i. e．those toward hardware integration and using wider bands．
Correspondent Email	lihuiling@xao.ac.cn
Keyword	边带分离边带抑制 Matlab
DOI	10.14005/j.cnki.issn1672-7673.2014.03.014
Indexed By	CSCD
Language	中文
CSCD ID	CSCD:5187503
Project Number	11253001 ; 11153002 ; RCPY201002
Funding Organization	国家自然科学基金 ; “西部之光”人才培养计划
Citation statistics
Document Type	期刊论文
Identifier	http://ir.xao.ac.cn/handle/45760611-7/1037
Collection	射电天文研究室_微波技术实验室射电天文研究室
Corresponding Author	李会玲
Affiliation	1.中国科学院新疆天文台 2.中国科学院射电天文重点实验室
First Author Affilication	Xinjiang Astronomical Observatory, Chinese Academy of Sciences
Corresponding Author Affilication	Xinjiang Astronomical Observatory, Chinese Academy of Sciences
Recommended Citation GB/T 7714	李会玲,陈卯蒸. 数字边带分离混频器的优化与仿真[J]. 天文研究与技术,2014,11(3):275-280.
APA	李会玲,&陈卯蒸.(2014).数字边带分离混频器的优化与仿真.天文研究与技术,11(3),275-280.
MLA	李会玲,et al."数字边带分离混频器的优化与仿真".天文研究与技术 11.3(2014):275-280.

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