VLBI wideband digital SSB converter based on poly-phase filter banks
文献类型：期刊论文
| 作者 | Chen, Lan1,2; Unbehauen, R.3; Luo, Jintao2; Zhang, Xiuzhong2; Rossmanith, Hans5; Feng, Zhibiao4 |
| 刊名 | ELECTRICAL ENGINEERING
 |
| 出版日期 | 2010-07-01 |
| 卷号 | 92期号:2页码:49-56 |
| 关键词 | VLBI Data acquisition back end Digital base-band converter SSB FFT Poly-phase filter banks |
| 英文摘要 | With the further development in astronomy and deep space exploration, the incremental improvements to be expected in the very long baseline interferometry (VLBI) is real-time, high sensitivity, high reliability and wider frequency coverage. The VLBI data acquisition backend plays an important role in the VLBI station. Recently, based on advances in digital hardware like analog-to-digital conversion, digital signal processing, field programmable gate arrays (FPGA) and so on, it has become practical to sample and digitally process the intermediate frequency signal directly. Digital base-band converters (DBBC) will replace analog base-band converters (ABBC) in the VLBI data acquisition backend. This paper presents a sequence of simple modifications to sampled data structures based on the analog prototype system to obtain the basic poly-phase structure in a VLBI data acquisition backend. The theoretical principles of a digital SSB down converter are discussed in detail. The approach adopts multi-rate signal processing for the designed filters in a digital SSB down converter which is carried out by virtex-4 FPGA chips. The observation result shows this model of DBBC is of better performances than ABBC. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Electrical & Electronic |
| 研究领域[WOS] | Engineering |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000280069200002 |
| 源URL | [http://119.78.226.72/handle/331011/26322]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Shanghai Inst Technol, Sch Mech & Automat Engn, Shanghai 200235, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 3.Univ Erlangen Nurnberg, Lehrstuhl Allgemeine & Theoret Elektrotech, D-91058 Erlangen, Germany 4.Tongji Univ, Elect & Informat Engn Dept, Shanghai 200092, Peoples R China 5.Univ Erlangen Nurnberg, Lehrstuhl Elektromagnet Felder, D-91058 Erlangen, Germany |
| 推荐引用方式 GB/T 7714 | Chen, Lan,Unbehauen, R.,Luo, Jintao,et al. VLBI wideband digital SSB converter based on poly-phase filter banks[J]. ELECTRICAL ENGINEERING,2010,92(2):49-56. |
| APA | Chen, Lan,Unbehauen, R.,Luo, Jintao,Zhang, Xiuzhong,Rossmanith, Hans,&Feng, Zhibiao.(2010).VLBI wideband digital SSB converter based on poly-phase filter banks.ELECTRICAL ENGINEERING,92(2),49-56. |
| MLA | Chen, Lan,et al."VLBI wideband digital SSB converter based on poly-phase filter banks".ELECTRICAL ENGINEERING 92.2(2010):49-56. |
入库方式： OAI收割
来源：上海天文台
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