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论文类型： 会议论文

发表时间： 2016-05-06

收录刊物： EI、CPCI-S、Scopus

页面范围： 528-532

关键字： time-frequency; non-stationary; WVD; time delay estimation

摘要： Time-frequency analysis is the important tool in signal processing, especially for non-stationary signals. When the interesting signals contaminated by impulsive noises, conventional time-frequency analysis method degenerate seriously because of lacking of limited second moment. In order to solve the degeneration of the estimation algorithm under non-Gaussian impulsive noise environment, the improved time delay estimation algorithm using fractional lower order Wigner-Ville distribution is proposed in this paper. Theoretical analysis and computer experiment demonstrates that the new algorithm has improved performance compared with conventional time-frequency analysis method.