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| VLBI总体条纹拟合方法的应用及其效果 | |
| 引用本文： | 蔡正东,彭勃,南仁东,R.T.Schilizzi,C.Fanti,R.Fanti,M.Inoue,S.Kameno. VLBI总体条纹拟合方法的应用及其效果[J]. 中国天文和天体物理学报, 1993, 0(2) |
| 作者姓名： | 蔡正东 彭勃 南仁东 R.T.Schilizzi C.Fanti R.Fanti M.Inoue S.Kameno |
| 作者单位： | 中国科学院北京天文台，中国科学院北京天文台，中国科学院北京天文台，Radiosierrenwacht Dwingeloo，The Netherland，Dipartimeto di Astronomia，Universita di Bologna，Italy，Dipartimeto di Astronomia，Universita di Bologna，Italy，Nobeyama Radio Observatory，Japan，Nobeyama Radio Observatory，Japan 北京 100080，北京 100080，北京 100080 |
| 摘 要： | 用总体条纹拟合求解各天线的延迟量和条纹率参数,可以提高与小天线相关基线的灵敏度。本文以射电致密陡谱源(CSS)3C43为例,就如何提高数据的信噪比,尽可能多地保留有效数据方面做了成功的尝试.从而十分有效地使用了总体条纹拟合方法.我们认为:对源结构的预知,配以恰当的处理技巧,能获取更多射电源结构信息,改善成图质量. |
| 关 键 词： | 天体物理方法 VLBI 数据处理 |
Application of Global Fringe Fitting Method and Its Effects |
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| CAI Zheng-dong PENG Bo NAN Ren-dong. Application of Global Fringe Fitting Method and Its Effects[J]. Chinese Journal of Astronomy and Astrophysics, 1993, 0(2) | |
| Authors: | CAI Zheng-dong PENG Bo NAN Ren-dong |
| Abstract: | Global fringe search technique is used to y eld a simultaneous solution for all delay and fringe rate parameters. This approach may raie the sensitivity related to the baselines of small antennae. Taking 3C43, a compact steep spectrum source as example we have made several experiments to find out how to raise the signal-noise rate and how to retain observational data as many as possible. We think that more radio structure information may be achieved with -the knowledge of source structure and suitable processing techniques. |
| Keywords: | Astrophysical method-VLBI-data processing |
| 本文献已被 CNKI 等数据库收录！ | |