| A new feature vector using selected line spectra for pulsar signal bispectrum characteristic analysis and recognition | |
| Xie, Zhen-Hua; Xu, Lu-Ping; Ni, Guang-Ren; Wang, Yan | |
| 2007 | |
| 发表期刊 | CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
 |
| ISSN | 1009-9271 |
| 卷号 | 7期号:4页码:565-571 |
| 摘要 | Average pulse profiles of pulsar signals are analyzed using the bispectrum technique. The result shows that there are nonlinear phase couplings between the two frequency axes of the bispectrum charts, which indicate nonlinear factors in the generation and propagation of pulsar signals. Bispectra can be used as feature vectors of pulsar signals because of their being translation invariant. A one-dimension selected line spectrum algorithm for extracting pulsar signal characteristic is proposed. Compared with selected bispectra, the proposed selected line spectra have the maximum interclass separability measurements from the point of view of the whole one-dimension feature vector. Recognition experiments on several pulsar signals received at several frequency bands are carried out. The result shows that the selected line spectrum algorithm is suitable for extracting pulsar signal characteristics and has a good classification performance. |
| 部门归属 | 守时理论与方法研究室 |
| 关键词 | Pulsars : General Stars : Magnetic Fields Stars : Fundamental |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000249365900013 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.72.145.45/handle/361003/4746 |
| 专题 | 守时理论与方法研究室 |
| 推荐引用方式 GB/T 7714 | Xie, Zhen-Hua,Xu, Lu-Ping,Ni, Guang-Ren,et al. A new feature vector using selected line spectra for pulsar signal bispectrum characteristic analysis and recognition[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2007,7(4):565-571. |
| APA | Xie, Zhen-Hua,Xu, Lu-Ping,Ni, Guang-Ren,&Wang, Yan.(2007).A new feature vector using selected line spectra for pulsar signal bispectrum characteristic analysis and recognition.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,7(4),565-571. |
| MLA | Xie, Zhen-Hua,et al."A new feature vector using selected line spectra for pulsar signal bispectrum characteristic analysis and recognition".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 7.4(2007):565-571. |
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