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基于实值离散Gabor变换的瞬变信号表示

Gabor Representation for Transient Signals via Real-valued Discrete Gabor Transforms
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摘要 实值离散Gabor变换(RDGT)是先前提出的用于对非平稳信号进行联合时频分析的一种快速变换方法。基于RDGT,该文提出了一种快速的瞬变信号Gabor表示算法,该算法能够有效地在联合时频域中区分多个具有不同频率和不同到达时间的被白噪声污染的瞬变信号。文章结尾还给出了一些实验来验证算法的有效性。 A fast algorithm for the Gabor representation fo r transient signals is presented,via the fast real-valued Gabor transforms p roposed in our previous papers for joint time-frequency analysis of nonstati onary signals.The proposed algorithm is capable of separating transient signal s with different frequencies,various arrival times,and additive white noises .Finally,numerical examples are given to demonstrate the efficiency of the alg orithm.
作者 陶亮 顾涓涓
出处 《计算机工程与应用》 CSCD 北大核心 2004年第1期35-38,共4页 Computer Engineering and Applications
基金 教育部优秀青年教师资助计划项目(编号:200240号) 安徽省自然科学基金项目(编号:01042210) 安徽省教育厅自然科学重点研究项目(编号:2001kj020zd) 安徽大学人才队伍建设经费资助
关键词 实值离散GABOR变换 瞬变信号 联合时频分析 real-valued discrete Gabor transforms ,transient signals, joint time-frequency analysis
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参考文献11

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