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dc.contributor.advisor张建中
dc.contributor.author黄吉林
dc.date.accessioned2016-02-14T08:19:46Z
dc.date.available2016-02-14T08:19:46Z
dc.date.issued2011-11-04 17:18:01.0
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/51631
dc.description.abstract时频分析是近年来现代信号处理研究的一个热点,它为时变非平稳信号的分析提供了有力工具。这种分析方法提供了时间域与频率域的联合分布信息,因而可以清楚地描述非平稳信号频率成分随时间变化的关系。探地雷达是以地下不同介质电性差异为物理前提的一种无损探测技术,具有快速便捷、操作简单、探测分辨率高、抗干扰和场地适应能力强等方面的优势,被广泛应用于国民经济建设和军事领域。探地雷达信号是典型的非平稳信号,时频分析成为探地雷达信号处理的有力工具。 本文介绍了短时傅立叶变换,小波变换,双线性变换,S变换和广义S变换几种常见的时频分析方法,比较了它们的优缺点和时频分辨率,重点讨论了S变换的基本原理,指出S变换与短时...
dc.description.abstractTime-frequency analysis has been a hotspot in modern signal processing research over the past few years, it acts as a powerful tool for variable non-stationary signal analysis. The method provides the joint distribution of information both in time and frequency domain, which can clearly describe how the frequency components of non-stationary signal change over time. Ground penetrating radar(GPR) i...
dc.language.isozh_CN
dc.relation.urihttps://catalog.xmu.edu.cn/opac/openlink.php?strText=29923&doctype=ALL&strSearchType=callno
dc.source.urihttps://etd.xmu.edu.cn/detail.asp?serial=31967
dc.subject探地雷达
dc.subject时频分析
dc.subject时频属性
dc.subjectGround Penetrating Radar(GPR)
dc.subjectTime-Frequency Analysis
dc.subjectTime-Frequency Attributes
dc.title探地雷达信号时频特征研究
dc.title.alternativeResearch on Time-Frequency Characteristics of Ground Penetrating Radar Signal
dc.typethesis
dc.date.replied2011-06-01
dc.description.note学位:工学硕士
dc.description.note院系专业:信息科学与技术学院通信工程系_信号与信息处理
dc.description.note学号:23320081153315


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