非平稳信号度量方法综述  

Review on Measurement Parametrics and Methods for Nonstationary Signal

作　　者：陈喆[1] 王荣 周文颖 殷殷 殷福亮[1] 

机构地区：[1]大连理工大学信息与通信工程学院,大连116024

出　　处：《数据采集与处理》2017年第4期667-683,共17页Journal of Data Acquisition and Processing

基　　金：国家高技术研究发展计划("八六三"计划)(2015AA016306)资助项目;辽宁省自然科学基金(20170540159)资助项目;中央高校基本科研业务费专项资金(DUT13LAB04)资助项目;国家自然科学基金项目(61172107;61172110)资助项目

摘　　要：非平稳性度量是非平稳信号处理中的重要课题。尽管已有的度量方法在原理上有较大差异,缺少统一的理论框架和度量标准,但这些非平稳信号度量方法都在其相应领域发挥了重要作用。本文对随机信号非平稳度量方法进行了综述,系统地总结、归纳了不同领域现有的随机信号非平稳性度量方法,包括基于统计量和动力学参数的时域方法、时频域参数方法、信号建模参数方法以及特定类别信号的非平稳性度量方法,给出了各种度量方法的应用,并展望了非平稳性度量的未来发展方向。Measuring non-stationary level is an important topic in non-stationary signal processing. Al- though the existing measurement parameters and methods have obvious differences in principle and are not derived from a unified theoretical framework and metrics, these measurements play an important role in the corresponding fields. This paper summarizes the measurement parameters and methods for the non-stationary signals in different research fields systematically, including the statistic and dynamic pa- rameters in time domain, the parameters in time-frequency domain, signal modeling parameters and spe- cific non-stationary signal measurements. Moreover, the applications of various measurement parameters and methods are given briefly. Finally, the future work on the non-stationary signal measurements is also deduced.

关 键 词：非平稳信号 非平稳性度量 时频表示 非线性 周期平稳 

分 类 号：TN911.72[电子电信—通信与信息系统]