| 一种性能优越的二次时频分布 |
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| 引用本文： | 徐毅,阮成礼,魏茂刚.一种性能优越的二次时频分布[J].电子科技大学学报（自然科学版）,2005,34(5):581-584. |
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| 作者姓名： | 徐毅 阮成礼 魏茂刚 |
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| 作者单位： | 1.电子科技大学物理电子学院 成都 610054 |
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| 摘 要： | 提出了一种新型的性能优越的二次时频分布核。通过对步进频率信号以及点频信号的时频分析处理,可以看到,这种核的时频分布比较于魏格纳分布以及Braham Barkat提出的分布,能更好地抑制交叉项;同时,这种核的频域分辨率与BD方法相当,而在时域上的分辨率则比它要更好。
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| 关 键 词： | 双线性时频分布 魏格纳分布 交叉项 时频域分辨率 |
| 收稿时间： | 2003-11-21 |
| 修稿时间： | 2003-11-21 |
A Predominant Performance Quadratic Time-Frequency Distribution |
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| Xu Yi;Ruan ChengLi;Wei MaoGang.A Predominant Performance Quadratic Time-Frequency Distribution[J].Journal of University of Electronic Science and Technology of China,2005,34(5):581-584. |
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| Authors: | Xu Yi;Ruan ChengLi;Wei MaoGang |
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| Affiliation: | 1.School of Physical Electronics,UEST of China Chengdu 610054 |
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| Abstract: | There are two important problem in the research of time-frequency distribution, which are restraining the cross terms and amending the resolutions of the time domain and the frequency domain. A new and predominant performance quadratic time-frequency kernel is presented in this paper. The new kernel can well restraining the cross terms compared with the WVD and the BD. And it has a good performance in the time domain and the frequency domain together. |
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| Keywords: | quadratic time-frequency distribution wigner ville distribution cross terms the resolutions of the time domain and the frequency domain |
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