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分数域反褶积Gabor谱图地震信号谱分解
田琳; 彭真明; 张启衡
Source Publication石油地球物理勘探
Volume50Issue:2Pages:219-224+1
2015
Language中文
DOI10.13810/j.cnki.issn.1000-7210.2015.02.003
Indexed ByEi
Subtype期刊论文
Abstract应用Gabor谱图可以将地震信号映射到二维时频域,可提供地震信号的频率随时间的变化规律。然而Gabor谱图的分辨率受到海森堡不确定原理的限制,时频分辨率较低。为此,本文将分数域自适应的最优窗函数引入Gabor谱图,得到分数域Gabor谱图。为了提高分数域Gabor谱图的时频分辨率,将自适应最优窗函数的Wigner-Ville分布(WVD)作为点扩散函数(PSF),再由分数域Gabor谱图和PSF做反褶积得到分数域反褶积Gabor谱图,同时给出了反褶积分数域Gabor谱图的计算方法和计算复杂度分析。测试信号和实际地震信号的谱分解结果都证明了分数域反褶积Gabor谱图在提高信号时频分辨率方面的优势...
Keyword分数阶傅里叶变换 Gabor谱图 反褶积 时频分辨率 谱分解
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Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/5090
Collection光电探测与信号处理研究室(五室)
Corresponding Author田琳
Affiliation1.电子科技大学光电信息学院
2.伊犁师范学院电子与信息工程学院
3.中国科学院光电技术研究所
Recommended Citation
GB/T 7714
田琳,彭真明,张启衡. 分数域反褶积Gabor谱图地震信号谱分解[J]. 石油地球物理勘探,2015,50(2):219-224+1.
APA 田琳,彭真明,&张启衡.(2015).分数域反褶积Gabor谱图地震信号谱分解.石油地球物理勘探,50(2),219-224+1.
MLA 田琳,et al."分数域反褶积Gabor谱图地震信号谱分解".石油地球物理勘探 50.2(2015):219-224+1.
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